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NEET ]1[ Contd...
NEET UG Human Reproduction
Instructions:
- Each question has four options (1), (2), (3), (4). Choose the most correct answer.
- Each correct answer carries 4 marks.
- Each wrong answer will deduct 1 marks.
- Unanswered questions will not be penalised.
1.Which sequence correctly represents the reproductive events in humans after puberty?
2.The pouch that maintains the testes at a lower temperature suitable for spermatogenesis is the
3.How many testicular lobules are present in each testis according to the chapter?
4.Which pair of cells lines the inside of a seminiferous tubule?
5.Which cells synthesise and secrete androgens?
6.Select the correct route from seminiferous tubules to epididymis.
7.The seminal plasma is specifically stated to be rich in
8.Which female organ is described as the primary female sex organ?
9.The ovarian stroma is divided into
10.Which part of the fallopian tube has finger-like fimbriae?
11.The birth canal is formed by
12.Which uterine layer undergoes cyclical changes during the menstrual cycle?
13.Which uterine layer shows strong contractions during delivery?
14.A functional mammary gland is characteristic of
15.Each breast contains how many mammary lobes?
16.Milk expressed at the nipple travels through which final duct before opening out?
17.Spermatogenesis begins at
18.Each spermatogonium contains
19.A primary spermatocyte completes meiosis I to form
20.Transformation of spermatids into spermatozoa is called
21.Release of spermatozoa from seminiferous tubules is called
22.Which hormone acts on Leydig cells?
23.Which hormone acts on Sertoli cells during spermatogenesis?
24.Which part of sperm contains numerous mitochondria?
25.For normal fertility, at least what percentage of sperms must show vigorous motility?
26.Oogenesis is initiated
27.The cavity of a tertiary follicle is called
28.First menstruation at puberty is called
29.The average interval of human menstrual cycle is about
30.The site of fertilisation in humans, as stated in the chapter, is the
31.Which of the following statements are correct?
I. Humans are sexually reproducing and viviparous.
II. Insemination means fusion of male and female gametes.
III. Implantation is attachment of blastocyst to uterine wall.
IV. Parturition means delivery of the baby.
I. Humans are sexually reproducing and viviparous.
II. Insemination means fusion of male and female gametes.
III. Implantation is attachment of blastocyst to uterine wall.
IV. Parturition means delivery of the baby.
32.Which of the following statements are correct?
I. Scrotum keeps testes 2–2.5°C below internal body temperature.
II. Each testis has about 250 testicular lobules.
III. Each lobule contains 10–12 seminiferous tubules.
IV. Leydig cells lie in the interstitial spaces.
I. Scrotum keeps testes 2–2.5°C below internal body temperature.
II. Each testis has about 250 testicular lobules.
III. Each lobule contains 10–12 seminiferous tubules.
IV. Leydig cells lie in the interstitial spaces.
33.Which of the following statements are correct?
I. Sertoli cells provide nutrition to germ cells.
II. Leydig cells secrete androgens.
III. Male germ cells undergo meiotic divisions to form sperm.
IV. Leydig cells form the lining cells inside seminiferous tubules.
I. Sertoli cells provide nutrition to germ cells.
II. Leydig cells secrete androgens.
III. Male germ cells undergo meiotic divisions to form sperm.
IV. Leydig cells form the lining cells inside seminiferous tubules.
34.Which of the following statements are correct?
I. Rete testis is part of male sex accessory ducts.
II. Vasa efferentia open into epididymis.
III. Vas deferens loops over the urinary bladder.
IV. Ejaculatory duct opens into the seminiferous tubule.
I. Rete testis is part of male sex accessory ducts.
II. Vasa efferentia open into epididymis.
III. Vas deferens loops over the urinary bladder.
IV. Ejaculatory duct opens into the seminiferous tubule.
35.Which of the following statements are correct?
I. Penis is male external genitalia.
II. Glans penis is covered by foreskin.
III. Bulbourethral gland secretions help lubrication.
IV. Seminal plasma lacks fructose.
I. Penis is male external genitalia.
II. Glans penis is covered by foreskin.
III. Bulbourethral gland secretions help lubrication.
IV. Seminal plasma lacks fructose.
36.Which of the following statements are correct?
I. Ovaries produce female gamete and ovarian steroid hormones.
II. Ovarian stroma has cortex and medulla.
III. Fallopian tubes, uterus and vagina are female accessory ducts.
IV. Mammary glands are primary female sex organs.
I. Ovaries produce female gamete and ovarian steroid hormones.
II. Ovarian stroma has cortex and medulla.
III. Fallopian tubes, uterus and vagina are female accessory ducts.
IV. Mammary glands are primary female sex organs.
37.Which of the following statements are correct?
I. Fallopian tube is about 10–12 cm long.
II. Infundibulum is funnel-shaped and nearer the ovary.
III. Fimbriae help collect ovum after ovulation.
IV. Isthmus is wider than ampulla.
I. Fallopian tube is about 10–12 cm long.
II. Infundibulum is funnel-shaped and nearer the ovary.
III. Fimbriae help collect ovum after ovulation.
IV. Isthmus is wider than ampulla.
38.Which of the following statements are correct?
I. Uterus is single and called womb.
II. Cervical canal with vagina forms birth canal.
III. Endometrium is the middle smooth muscle layer.
IV. Myometrium contracts strongly during delivery.
I. Uterus is single and called womb.
II. Cervical canal with vagina forms birth canal.
III. Endometrium is the middle smooth muscle layer.
IV. Myometrium contracts strongly during delivery.
39.Which of the following statements are correct?
I. Mons pubis is fatty tissue covered by skin and pubic hair.
II. Labia minora are paired folds under labia majora.
III. Clitoris lies at the lower junction of labia majora.
IV. Hymen may persist even after coitus.
I. Mons pubis is fatty tissue covered by skin and pubic hair.
II. Labia minora are paired folds under labia majora.
III. Clitoris lies at the lower junction of labia majora.
IV. Hymen may persist even after coitus.
40.Which of the following statements are correct?
I. Presence of hymen is a reliable indicator of virginity.
II. Hymen can tear due to fall, jolt, tampon insertion or sports.
III. The vaginal opening is often covered partially by hymen.
IV. Hymen always tears during first coitus.
I. Presence of hymen is a reliable indicator of virginity.
II. Hymen can tear due to fall, jolt, tampon insertion or sports.
III. The vaginal opening is often covered partially by hymen.
IV. Hymen always tears during first coitus.
41.Which of the following statements are correct?
I. Alveoli secrete milk.
II. Mammary ampulla connects to lactiferous duct.
III. Each breast has 15–20 mammary lobes.
IV. Milk is stored in the lumen of mammary ducts only.
I. Alveoli secrete milk.
II. Mammary ampulla connects to lactiferous duct.
III. Each breast has 15–20 mammary lobes.
IV. Milk is stored in the lumen of mammary ducts only.
42.Which of the following statements are correct?
I. Spermatogonia multiply by mitosis.
II. Primary spermatocyte undergoes meiosis.
III. First meiotic division forms four spermatids.
IV. Second meiotic division forms four haploid spermatids.
I. Spermatogonia multiply by mitosis.
II. Primary spermatocyte undergoes meiosis.
III. First meiotic division forms four spermatids.
IV. Second meiotic division forms four haploid spermatids.
43.Which of the following statements are correct?
I. Spermatids become spermatozoa by spermiogenesis.
II. Spermiation is release from seminiferous tubules.
III. Sperm heads become embedded in Sertoli cells after spermiogenesis.
IV. Spermiogenesis is triggered by oxytocin.
I. Spermatids become spermatozoa by spermiogenesis.
II. Spermiation is release from seminiferous tubules.
III. Sperm heads become embedded in Sertoli cells after spermiogenesis.
IV. Spermiogenesis is triggered by oxytocin.
44.Which of the following statements are correct?
I. GnRH is a hypothalamic hormone.
II. GnRH stimulates anterior pituitary to secrete LH and FSH.
III. LH acts on Sertoli cells.
IV. FSH acts on Leydig cells.
I. GnRH is a hypothalamic hormone.
II. GnRH stimulates anterior pituitary to secrete LH and FSH.
III. LH acts on Sertoli cells.
IV. FSH acts on Leydig cells.
45.Which of the following statements are correct?
I. Sperm head contains elongated haploid nucleus.
II. Acrosome is cap-like and filled with enzymes.
III. Middle piece contains mitochondria.
IV. Tail enzymes help fertilisation by digesting zona pellucida.
I. Sperm head contains elongated haploid nucleus.
II. Acrosome is cap-like and filled with enzymes.
III. Middle piece contains mitochondria.
IV. Tail enzymes help fertilisation by digesting zona pellucida.
46.Which of the following statements are correct?
I. Normal fertility requires at least 60% sperms with normal shape and size.
II. Normal fertility requires at least 40% sperms with vigorous motility.
III. About 200–300 million sperms are ejaculated in coitus.
IV. Semen is only seminal plasma without sperms.
I. Normal fertility requires at least 60% sperms with normal shape and size.
II. Normal fertility requires at least 40% sperms with vigorous motility.
III. About 200–300 million sperms are ejaculated in coitus.
IV. Semen is only seminal plasma without sperms.
47.Which of the following statements are correct?
I. Oogenesis begins during embryonic development.
II. No more oogonia are formed after birth.
III. Primary oocytes are arrested at prophase I.
IV. Oogenesis begins only at menarche.
I. Oogenesis begins during embryonic development.
II. No more oogonia are formed after birth.
III. Primary oocytes are arrested at prophase I.
IV. Oogenesis begins only at menarche.
48.Which of the following statements are correct?
I. Primary follicle has primary oocyte surrounded by granulosa cells.
II. Secondary follicle gains more granulosa layers and a theca.
III. Tertiary follicle has antrum.
IV. Graafian follicle is formed before secondary follicle.
I. Primary follicle has primary oocyte surrounded by granulosa cells.
II. Secondary follicle gains more granulosa layers and a theca.
III. Tertiary follicle has antrum.
IV. Graafian follicle is formed before secondary follicle.
49.Which of the following statements are correct?
I. First meiotic division in oogenesis is unequal.
II. Large haploid secondary oocyte and tiny first polar body are formed.
III. Secondary oocyte retains most cytoplasm.
IV. First polar body definitely divides further according to the chapter.
I. First meiotic division in oogenesis is unequal.
II. Large haploid secondary oocyte and tiny first polar body are formed.
III. Secondary oocyte retains most cytoplasm.
IV. First polar body definitely divides further according to the chapter.
50.Which of the following statements are correct?
I. Zona pellucida surrounds the secondary oocyte.
II. Ovulation releases the secondary oocyte from the Graafian follicle.
III. Ovulation is rupture of the primary follicle.
IV. Tertiary follicle changes into Graafian follicle.
I. Zona pellucida surrounds the secondary oocyte.
II. Ovulation releases the secondary oocyte from the Graafian follicle.
III. Ovulation is rupture of the primary follicle.
IV. Tertiary follicle changes into Graafian follicle.
51.Which of the following statements are correct?
I. Menstrual cycle occurs in female primates.
II. First menstruation is menarche.
III. One ovum is released during the middle of each menstrual cycle.
IV. Menstrual cycle starts at menopause.
I. Menstrual cycle occurs in female primates.
II. First menstruation is menarche.
III. One ovum is released during the middle of each menstrual cycle.
IV. Menstrual cycle starts at menopause.
52.Which of the following statements are correct?
I. Menstrual phase lasts 3–5 days.
II. Menstrual flow comes from breakdown of endometrial lining and blood vessels.
III. Menstruation occurs when released ovum is fertilised.
IV. Lack of menstruation always means pregnancy.
I. Menstrual phase lasts 3–5 days.
II. Menstrual flow comes from breakdown of endometrial lining and blood vessels.
III. Menstruation occurs when released ovum is fertilised.
IV. Lack of menstruation always means pregnancy.
53.Which of the following statements are correct?
I. In follicular phase, primary follicles grow into Graafian follicle.
II. Endometrium regenerates during follicular phase.
III. LH and FSH gradually increase during follicular phase.
IV. Corpus luteum secretes progesterone during follicular phase.
I. In follicular phase, primary follicles grow into Graafian follicle.
II. Endometrium regenerates during follicular phase.
III. LH and FSH gradually increase during follicular phase.
IV. Corpus luteum secretes progesterone during follicular phase.
54.Which of the following statements are correct?
I. LH surge occurs around mid-cycle.
II. LH surge ruptures Graafian follicle.
III. Ovulation is induced by LH surge.
IV. FSH surge directly expels baby during parturition.
I. LH surge occurs around mid-cycle.
II. LH surge ruptures Graafian follicle.
III. Ovulation is induced by LH surge.
IV. FSH surge directly expels baby during parturition.
55.Which of the following statements are correct?
I. Corpus luteum forms from the remaining Graafian follicle after ovulation.
II. Corpus luteum secretes progesterone.
III. Progesterone maintains endometrium.
IV. Corpus luteum persists forever if fertilisation is absent.
I. Corpus luteum forms from the remaining Graafian follicle after ovulation.
II. Corpus luteum secretes progesterone.
III. Progesterone maintains endometrium.
IV. Corpus luteum persists forever if fertilisation is absent.
56.Which of the following statements are correct?
I. Semen is released into vagina during coitus.
II. Sperms pass through cervix and uterus.
III. Fertilisation occurs in ampullary region.
IV. All copulations lead to pregnancy if semen is released.
I. Semen is released into vagina during coitus.
II. Sperms pass through cervix and uterus.
III. Fertilisation occurs in ampullary region.
IV. All copulations lead to pregnancy if semen is released.
57.Which of the following statements are correct?
I. Zona pellucida contact triggers membrane changes preventing additional sperm entry.
II. Acrosomal secretions help sperm enter ovum.
III. Completion of meiosis II occurs before sperm entry.
IV. Second polar body forms during completion of meiosis II.
I. Zona pellucida contact triggers membrane changes preventing additional sperm entry.
II. Acrosomal secretions help sperm enter ovum.
III. Completion of meiosis II occurs before sperm entry.
IV. Second polar body forms during completion of meiosis II.
58.Which of the following statements are correct?
I. Female gametes carry X chromosome.
II. Half of sperms carry X and half carry Y.
III. XX zygote develops as female.
IV. Mother determines sex of the baby because all ova carry X.
I. Female gametes carry X chromosome.
II. Half of sperms carry X and half carry Y.
III. XX zygote develops as female.
IV. Mother determines sex of the baby because all ova carry X.
59.Which of the following statements are correct?
I. Cleavage is mitotic division of zygote during movement through isthmus.
II. Blastomeres appear as 2, 4, 8 and 16 cells.
III. Morula has 8–16 blastomeres.
IV. Blastocyst forms before morula.
I. Cleavage is mitotic division of zygote during movement through isthmus.
II. Blastomeres appear as 2, 4, 8 and 16 cells.
III. Morula has 8–16 blastomeres.
IV. Blastocyst forms before morula.
60.Which of the following statements are correct?
I. Blastocyst has trophoblast and inner cell mass.
II. Trophoblast attaches to endometrium.
III. Inner cell mass differentiates as embryo.
IV. Implantation means blastocyst embedding in myometrium.
I. Blastocyst has trophoblast and inner cell mass.
II. Trophoblast attaches to endometrium.
III. Inner cell mass differentiates as embryo.
IV. Implantation means blastocyst embedding in myometrium.
61.Which of the following statements are correct?
I. Chorionic villi arise from trophoblast after implantation.
II. Chorionic villi are surrounded by uterine tissue and maternal blood.
III. Placenta is formed jointly by chorionic villi and uterine tissue.
IV. Placenta is formed entirely from the inner cell mass only.
I. Chorionic villi arise from trophoblast after implantation.
II. Chorionic villi are surrounded by uterine tissue and maternal blood.
III. Placenta is formed jointly by chorionic villi and uterine tissue.
IV. Placenta is formed entirely from the inner cell mass only.
62.Which of the following statements are correct?
I. Placenta supplies oxygen and nutrients.
II. Placenta removes carbon dioxide and wastes.
III. Umbilical cord connects placenta and embryo.
IV. Placenta has no endocrine function.
I. Placenta supplies oxygen and nutrients.
II. Placenta removes carbon dioxide and wastes.
III. Umbilical cord connects placenta and embryo.
IV. Placenta has no endocrine function.
63.Which of the following statements are correct?
I. Placenta produces hCG and hPL.
II. Placenta produces estrogens and progestogens.
III. Relaxin is secreted by ovary in later pregnancy.
IV. hCG, hPL and relaxin are produced only during pregnancy in women.
I. Placenta produces hCG and hPL.
II. Placenta produces estrogens and progestogens.
III. Relaxin is secreted by ovary in later pregnancy.
IV. hCG, hPL and relaxin are produced only during pregnancy in women.
64.Which of the following statements are correct?
I. Inner cell mass differentiates into ectoderm and endoderm first.
II. Mesoderm appears between ectoderm and endoderm.
III. The three germ layers give rise to all adult tissues/organs.
IV. Stem cells of inner cell mass can give rise to all tissues and organs.
I. Inner cell mass differentiates into ectoderm and endoderm first.
II. Mesoderm appears between ectoderm and endoderm.
III. The three germ layers give rise to all adult tissues/organs.
IV. Stem cells of inner cell mass can give rise to all tissues and organs.
65.Which of the following statements are correct?
I. After one month, embryo's heart is formed.
II. By end of second month, limbs and digits develop.
III. By end of 12 weeks, most major organ systems are formed.
IV. First foetal movements are usually observed during the second month.
I. After one month, embryo's heart is formed.
II. By end of second month, limbs and digits develop.
III. By end of 12 weeks, most major organ systems are formed.
IV. First foetal movements are usually observed during the second month.
66.Which of the following statements are correct?
I. At 24 weeks/end of second trimester, fine hair covers body.
II. At 24 weeks, eyelids separate and eyelashes form.
III. By nine months, foetus is fully developed.
IV. At first trimester, foetus is ready for delivery.
I. At 24 weeks/end of second trimester, fine hair covers body.
II. At 24 weeks, eyelids separate and eyelashes form.
III. By nine months, foetus is fully developed.
IV. At first trimester, foetus is ready for delivery.
67.Which of the following statements are correct?
I. Gestation period in humans is about nine months.
II. Parturition means delivery of foetus.
III. Foetal ejection reflex originates from fully developed foetus and placenta.
IV. Oxytocin is released from foetal pituitary.
I. Gestation period in humans is about nine months.
II. Parturition means delivery of foetus.
III. Foetal ejection reflex originates from fully developed foetus and placenta.
IV. Oxytocin is released from foetal pituitary.
68.Which of the following statements are correct?
I. Oxytocin causes stronger uterine contractions.
II. Stronger contractions stimulate more oxytocin secretion.
III. Parturition uses a positive feedback-like stimulatory reflex.
IV. Placenta is expelled before delivery of infant.
I. Oxytocin causes stronger uterine contractions.
II. Stronger contractions stimulate more oxytocin secretion.
III. Parturition uses a positive feedback-like stimulatory reflex.
IV. Placenta is expelled before delivery of infant.
69.Which of the following statements are correct?
I. Mammary glands differentiate during pregnancy.
II. Milk production near the end of pregnancy is lactation.
III. Colostrum is initial milk with antibodies.
IV. Colostrum is harmful because it lacks antibodies.
I. Mammary glands differentiate during pregnancy.
II. Milk production near the end of pregnancy is lactation.
III. Colostrum is initial milk with antibodies.
IV. Colostrum is harmful because it lacks antibodies.
70.Which of the following statements are correct?
I. Androgens maintain male accessory duct and gland functions.
II. Secretions of epididymis, vas deferens, seminal vesicle and prostate aid maturation and motility of sperms.
III. Semen consists of seminal plasma with sperms.
IV. Bulbourethral gland is the only source of seminal plasma.
I. Androgens maintain male accessory duct and gland functions.
II. Secretions of epididymis, vas deferens, seminal vesicle and prostate aid maturation and motility of sperms.
III. Semen consists of seminal plasma with sperms.
IV. Bulbourethral gland is the only source of seminal plasma.
71.Which of the following statements are correct?
I. The uterus is shaped like an inverted pear.
II. It is supported by ligaments attached to pelvic wall.
III. It opens into vagina through cervix.
IV. Its cavity with ampulla forms birth canal.
I. The uterus is shaped like an inverted pear.
II. It is supported by ligaments attached to pelvic wall.
III. It opens into vagina through cervix.
IV. Its cavity with ampulla forms birth canal.
72.Which of the following statements are correct?
I. Fallopian tube sequence from ovary toward uterus is infundibulum → ampulla → isthmus.
II. Fimbriae help in collection of ovum.
III. Fertilisation takes place in ampullary region.
IV. Isthmus is the part closest to ovary.
I. Fallopian tube sequence from ovary toward uterus is infundibulum → ampulla → isthmus.
II. Fimbriae help in collection of ovum.
III. Fertilisation takes place in ampullary region.
IV. Isthmus is the part closest to ovary.
73.Which of the following is NOT a male sex accessory duct?
74.Select the incorrect statement.
75.All are parts of female external genitalia EXCEPT
76.Which statement about hymen is incorrect?
77.Which pairing is incorrect?
78.Which is NOT part of the milk passage sequence stated in the chapter?
79.Which statement is NOT correct about spermatogenesis?
80.Which hormone-action pair is incorrect?
81.Choose the incorrect statement about sperm.
82.Which is NOT essential for maturation and motility of sperms according to the chapter?
83.Which statement about oogenesis is incorrect?
84.All are correctly paired EXCEPT
85.Which is NOT a normal event of menstrual phase?
86.Which statement about menstrual cycle is NOT correct?
87.In the absence of fertilisation, which event is NOT expected?
88.All are true about fertilisation EXCEPT
89.Which is NOT produced as a result of second meiotic division of secondary oocyte during fertilisation?
90.Which statement about sex determination is incorrect?
91.Which is NOT correctly matched?
92.Which hormone is NOT listed as a placental hormone in the chapter?
93.Which developmental milestone is incorrectly paired?
94.Which statement about parturition is incorrect?
95.Match the columns.
A. Sertoli cells B. Leydig cells C. Spermatogonia D. Interstitial spaces
I. Androgen secretion II. Nutrition to germ cells III. Male germ cells IV. Blood vessels and Leydig cells
A. Sertoli cells B. Leydig cells C. Spermatogonia D. Interstitial spaces
I. Androgen secretion II. Nutrition to germ cells III. Male germ cells IV. Blood vessels and Leydig cells
96.Match the male duct parts with sequence/function.
A. Rete testis B. Vasa efferentia C. Epididymis D. Vas deferens
I. Opens into epididymis II. Leads to vas deferens III. Receives duct from seminal vesicle IV. Receives seminiferous tubules before vasa efferentia
A. Rete testis B. Vasa efferentia C. Epididymis D. Vas deferens
I. Opens into epididymis II. Leads to vas deferens III. Receives duct from seminal vesicle IV. Receives seminiferous tubules before vasa efferentia
97.Match the gland/duct with feature.
A. Seminal vesicle B. Prostate C. Bulbourethral gland D. Urethra
I. Paired accessory gland II. Single accessory gland III. Lubrication of penis IV. External opening is urethral meatus
A. Seminal vesicle B. Prostate C. Bulbourethral gland D. Urethra
I. Paired accessory gland II. Single accessory gland III. Lubrication of penis IV. External opening is urethral meatus
98.Match female reproductive structures.
A. Cortex/medulla B. Infundibulum C. Isthmus D. Cervical canal
I. Ovarian stroma zones II. Funnel-shaped near ovary III. Narrow lumen and joins uterus IV. With vagina forms birth canal
A. Cortex/medulla B. Infundibulum C. Isthmus D. Cervical canal
I. Ovarian stroma zones II. Funnel-shaped near ovary III. Narrow lumen and joins uterus IV. With vagina forms birth canal
99.Match uterine layer with description.
A. Perimetrium B. Myometrium C. Endometrium D. Cervix
I. Strong contractions in delivery II. Inner glandular lining III. External thin membrane IV. Narrow opening into vagina
A. Perimetrium B. Myometrium C. Endometrium D. Cervix
I. Strong contractions in delivery II. Inner glandular lining III. External thin membrane IV. Narrow opening into vagina
100.Match external genitalia.
A. Mons pubis B. Labia majora C. Labia minora D. Clitoris
I. Paired folds under labia majora II. Fatty tissue with skin and pubic hair III. Fleshy folds surrounding vaginal opening IV. Tiny finger-like structure above urethral opening
A. Mons pubis B. Labia majora C. Labia minora D. Clitoris
I. Paired folds under labia majora II. Fatty tissue with skin and pubic hair III. Fleshy folds surrounding vaginal opening IV. Tiny finger-like structure above urethral opening
101.Match mammary gland pathway.
A. Alveoli B. Mammary tubules C. Mammary ducts D. Mammary ampulla
I. Open from alveoli II. Store milk in lumens III. Wider structure connecting to lactiferous duct IV. Formed by joining tubules of each lobe
A. Alveoli B. Mammary tubules C. Mammary ducts D. Mammary ampulla
I. Open from alveoli II. Store milk in lumens III. Wider structure connecting to lactiferous duct IV. Formed by joining tubules of each lobe
102.Match stages of spermatogenesis.
A. Spermatogonium B. Primary spermatocyte C. Secondary spermatocyte D. Spermatid
I. Diploid 46 chromosomes II. Completes meiosis I to form two cells III. Haploid 23 chromosomes after meiosis I IV. Transforms into spermatozoa
A. Spermatogonium B. Primary spermatocyte C. Secondary spermatocyte D. Spermatid
I. Diploid 46 chromosomes II. Completes meiosis I to form two cells III. Haploid 23 chromosomes after meiosis I IV. Transforms into spermatozoa
103.Match hormones with target/action.
A. GnRH B. LH C. FSH D. Androgens
I. Acts on Leydig cells II. Acts on anterior pituitary III. Acts on Sertoli cells IV. Stimulates spermatogenesis
A. GnRH B. LH C. FSH D. Androgens
I. Acts on Leydig cells II. Acts on anterior pituitary III. Acts on Sertoli cells IV. Stimulates spermatogenesis
104.Match sperm part with feature.
A. Head B. Acrosome C. Middle piece D. Tail
I. Mitochondria II. Motility III. Elongated haploid nucleus IV. Enzymes for fertilisation
A. Head B. Acrosome C. Middle piece D. Tail
I. Mitochondria II. Motility III. Elongated haploid nucleus IV. Enzymes for fertilisation
105.Match oogenesis structures.
A. Primary follicle B. Secondary follicle C. Tertiary follicle D. Graafian follicle
I. Antrum II. Ruptures at ovulation III. Primary oocyte with granulosa layer IV. More granulosa layers and theca
A. Primary follicle B. Secondary follicle C. Tertiary follicle D. Graafian follicle
I. Antrum II. Ruptures at ovulation III. Primary oocyte with granulosa layer IV. More granulosa layers and theca
106.Match menstrual cycle terms.
A. Menarche B. Menopause C. LH surge D. Luteal phase
I. Around 50 years cessation II. First menstruation III. Ovulation induction IV. Corpus luteum phase
A. Menarche B. Menopause C. LH surge D. Luteal phase
I. Around 50 years cessation II. First menstruation III. Ovulation induction IV. Corpus luteum phase
107.Match menstrual phase/event.
A. Menstrual phase B. Follicular phase C. Ovulation D. Absence of fertilisation
I. Endometrial breakdown II. Follicle growth and endometrial regeneration III. Rupture of Graafian follicle IV. Corpus luteum degeneration
A. Menstrual phase B. Follicular phase C. Ovulation D. Absence of fertilisation
I. Endometrial breakdown II. Follicle growth and endometrial regeneration III. Rupture of Graafian follicle IV. Corpus luteum degeneration
108.Match fertilisation events.
A. Sperm-zona pellucida contact B. Acrosomal secretion C. Sperm entry D. Nuclei fusion
I. Entry through ovum coverings II. Blocks extra sperm entry III. Completion of meiosis II IV. Diploid zygote
A. Sperm-zona pellucida contact B. Acrosomal secretion C. Sperm entry D. Nuclei fusion
I. Entry through ovum coverings II. Blocks extra sperm entry III. Completion of meiosis II IV. Diploid zygote
109.Match early embryo terms.
A. Cleavage B. Morula C. Trophoblast D. Inner cell mass
I. 8–16 blastomeres II. Mitotic division III. Outer blastocyst layer IV. Forms embryo
A. Cleavage B. Morula C. Trophoblast D. Inner cell mass
I. 8–16 blastomeres II. Mitotic division III. Outer blastocyst layer IV. Forms embryo
110.Match placenta-related items.
A. Chorionic villi B. Placenta C. Umbilical cord D. hCG/hPL
I. Endocrine products of placenta II. Trophoblast projections III. Structural-functional unit with maternal body IV. Connects placenta to embryo
A. Chorionic villi B. Placenta C. Umbilical cord D. hCG/hPL
I. Endocrine products of placenta II. Trophoblast projections III. Structural-functional unit with maternal body IV. Connects placenta to embryo
111.Match development milestones.
A. One month B. End of second month C. End of first trimester D. Fifth month
I. Limbs and digits II. Heart formed III. Most major organ systems IV. First movements and hair on head
A. One month B. End of second month C. End of first trimester D. Fifth month
I. Limbs and digits II. Heart formed III. Most major organ systems IV. First movements and hair on head
112.Match parturition/lactation terms.
A. Foetal ejection reflex B. Oxytocin C. Lactation D. Colostrum
I. Milk production II. Initial milk with antibodies III. From fully developed foetus and placenta IV. Stronger uterine contractions
A. Foetal ejection reflex B. Oxytocin C. Lactation D. Colostrum
I. Milk production II. Initial milk with antibodies III. From fully developed foetus and placenta IV. Stronger uterine contractions
113.Assertion (A): Testes are located outside the abdominal cavity in the scrotum.
Reason (R): Scrotum maintains testes at 2–2.5°C lower temperature required for spermatogenesis.
Reason (R): Scrotum maintains testes at 2–2.5°C lower temperature required for spermatogenesis.
114.Assertion (A): Leydig cells are present in interstitial spaces.
Reason (R): Leydig cells synthesize and secrete androgens.
Reason (R): Leydig cells synthesize and secrete androgens.
115.Assertion (A): Sertoli cells secrete androgens.
Reason (R): Sertoli cells provide nutrition to germ cells.
Reason (R): Sertoli cells provide nutrition to germ cells.
116.Assertion (A): The cervical canal along with vagina forms the birth canal.
Reason (R): The uterus opens into vagina through cervix.
Reason (R): The uterus opens into vagina through cervix.
117.Assertion (A): Presence or absence of hymen is not a reliable indicator of virginity.
Reason (R): Hymen can be torn by causes other than coitus and may persist after coitus.
Reason (R): Hymen can be torn by causes other than coitus and may persist after coitus.
118.Assertion (A): Mammary alveoli are important for milk secretion.
Reason (R): Alveolar cells secrete milk and milk is stored in alveolar lumens.
Reason (R): Alveolar cells secrete milk and milk is stored in alveolar lumens.
119.Assertion (A): Spermatogenesis starts at puberty.
Reason (R): There is significant increase in GnRH secretion at puberty.
Reason (R): There is significant increase in GnRH secretion at puberty.
120.Assertion (A): LH stimulates androgen secretion.
Reason (R): LH acts on Sertoli cells to release factors for spermiogenesis.
Reason (R): LH acts on Sertoli cells to release factors for spermiogenesis.
121.Assertion (A): Spermiation is different from spermiogenesis.
Reason (R): Spermiogenesis transforms spermatids into spermatozoa, whereas spermiation releases spermatozoa from seminiferous tubules.
Reason (R): Spermiogenesis transforms spermatids into spermatozoa, whereas spermiation releases spermatozoa from seminiferous tubules.
122.Assertion (A): First meiotic division in oogenesis produces a large secondary oocyte and a tiny polar body.
Reason (R): The division is unequal and secondary oocyte retains most nutrient-rich cytoplasm.
Reason (R): The division is unequal and secondary oocyte retains most nutrient-rich cytoplasm.
123.Assertion (A): Menstruation occurs when the released ovum is fertilised.
Reason (R): Corpus luteum secretes progesterone for maintenance of endometrium.
Reason (R): Corpus luteum secretes progesterone for maintenance of endometrium.
124.Assertion (A): LH surge induces ovulation.
Reason (R): LH surge causes rupture of the Graafian follicle.
Reason (R): LH surge causes rupture of the Graafian follicle.
125.Assertion (A): Not every copulation leads to fertilisation and pregnancy.
Reason (R): Fertilisation requires simultaneous transport of sperms and ovum to ampullary region.
Reason (R): Fertilisation requires simultaneous transport of sperms and ovum to ampullary region.
126.Assertion (A): Only one sperm can fertilise an ovum.
Reason (R): Sperm contact with zona pellucida induces membrane changes blocking entry of additional sperms.
Reason (R): Sperm contact with zona pellucida induces membrane changes blocking entry of additional sperms.
127.Assertion (A): Father determines the sex of the baby.
Reason (R): Ova carry X chromosome while sperms may carry either X or Y chromosome.
Reason (R): Ova carry X chromosome while sperms may carry either X or Y chromosome.
128.Assertion (A): Placenta acts as an endocrine tissue.
Reason (R): Placenta produces hCG, hPL, estrogens and progestogens.
Reason (R): Placenta produces hCG, hPL, estrogens and progestogens.
129.Assertion (A): Parturition is a neuroendocrine mechanism.
Reason (R): Foetal ejection reflex triggers maternal pituitary oxytocin, which increases uterine contractions.
Reason (R): Foetal ejection reflex triggers maternal pituitary oxytocin, which increases uterine contractions.
130.Assertion (A): Colostrum is recommended for newborn babies.
Reason (R): Colostrum contains several antibodies essential for developing resistance.
Reason (R): Colostrum contains several antibodies essential for developing resistance.
131.In a labelled diagram of the male reproductive system, a duct ascends to the abdomen, loops over urinary bladder, receives a duct from seminal vesicle and opens into urethra. The label should be
132.In the seminiferous tubule diagram, the cells outside the tubule in interstitial spaces that secrete testicular hormones are
133.A diagram of a female pelvis shows a funnel-shaped part near the ovary with finger-like projections. The projections are correctly labelled as
134.In a diagram of uterus wall, the layer that should be shown as the thick smooth muscle layer is
135.In a mammary gland flow diagram, which sequence is correct?
136.A process chart shows: spermatogonium → primary spermatocyte → secondary spermatocytes → spermatids → spermatozoa. Which division produces the two secondary spermatocytes?
137.In the sperm diagram, the cap-like anterior structure on the head is incorrectly labelled as mitochondria. What should it be?
138.In an ovarian follicle diagram, a fluid-filled cavity appears in the tertiary follicle. The cavity is
139.A menstrual cycle graph shows LH rising sharply around day 14. The event immediately induced by this surge is
140.In a fertilisation process diagram, which event should be placed immediately after sperm enters the secondary oocyte?
141.In a diagram of blastocyst, the outer layer that attaches to endometrium should be labelled
142.A flow chart of parturition is incomplete: fully developed foetus/placenta → mild uterine contractions → ____ → oxytocin release → stronger contractions. The blank is
143.Choose the option in which all three pairs are correctly matched.
144.Which option contains only pregnancy-related hormones/events correctly linked in the chapter?
145.Select the option where the sequence is entirely correct.
146.Which option gives the correct paired ploidy/stage information?
147.Which option is completely correct about early embryonic development?
148.A student says, 'A woman is responsible for giving birth to a daughter because the ovum decides sex.' Which correction is most NCERT-accurate?
149.A cycle is 28/29 days long, but menstruation does not occur in one cycle. Which statement is the safest NCERT-based interpretation?
150.A newborn is not given the first milk because someone says it is unnecessary. Which NCERT-based argument is strongest?
Answer Key
11
22
33
41
53
62
72
83
91
103
112
123
132
142
153
163
173
182
192
203
213
222
231
243
251
262
272
283
293
303
312
321
332
342
351
362
371
382
391
402
412
422
432
441
451
461
472
482
491
501
511
521
531
541
552
561
571
581
591
601
611
621
634
644
651
661
671
682
691
701
711
721
734
744
754
763
774
784
794
804
814
824
834
844
854
864
874
884
893
904
914
924
934
944
951
961
971
981
991
1001
1011
1021
1031
1041
1051
1061
1071
1081
1091
1101
1111
1121
1131
1142
1154
1161
1171
1181
1191
1203
1211
1221
1234
1241
1251
1261
1271
1281
1291
1301
1313
1322
1331
1342
1351
1362
1371
1382
1392
1401
1412
1421
1432
1441
1451
1462
1471
1482
1492
1502