Human Reproduction
37 NEET Biology previous year questions on Human Reproduction — options free on every question; 4 include the answer & explanation free, the rest unlock with PYQ Pass.
Arrange the following cell layers/structures around the female gamete, from outer to inner side :
A. Zona pellucida
B. Perivitelline space
C. Corona radiata
D. Plasma membrane of ovum
Choose the correct answer from the options given below :
[NEET 2026]
C, A, B, D
- Around the human ovum, the layers are arranged in a specific order from outer to inner side.
- The outermost layer is the corona radiata, followed by the zona pellucida. Inside this lies the perivitelline space, and the innermost boundary is the plasma membrane of the ovum.
- Option B correctly represents the sequence: C → A → B → D
- Therefore, the correct answer is Option B: C, A, B, D.
Consider the following:
A. The reductive division for the human female gametogenesis starts earlier than that of the male gametogenesis.
B. The gap between the first meiotic division and the second meiotic division is much shorter for males compared to females.
C. The first polar body is associated with the formation of the primary oocyte.
D. Luteinizing Hormone (LH) surge leads to disintegration of the endometrium and onset of menstrual bleeding.
Choose the correct answer from the options given below:
[NEET 2025]
A and B are true
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A. True — In females, meiosis begins during fetal development, long before birth. In contrast, spermatogenesis (male gametogenesis) starts at puberty.
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B. True — In males, meiosis I and II occur continuously and rapidly during sperm formation. In females, the first meiotic division pauses at prophase I until puberty, and the second division occurs only after fertilization, causing a long gap.
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C. False — The first polar body is formed after the primary oocyte completes meiosis I, not during its formation.
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D. False — The LH surge triggers ovulation, not menstrual bleeding. Menstruation occurs if fertilization does not happen.
Thus, statements A and B are correct, so the answer is Option C.
Arrange the following parts in human Mammary gland, traversing the route of milk ejection.
A. Mammary duct
B. Lactiferous duct
C Mammary alveolus
D. Ampulla
E. Mammary tubule
Choose the correct answer from the options given below:
\(\mathrm{C}\to \mathrm{E}\to \mathrm{A}\to \mathrm{D}\to \mathrm{B}\)
The cells of alveoli secrete milk, which is stored in the cavities (lumens) of alveoli. The alveoli open into mammary tubules. The tubules of each lobe join to form a mammary duct. Several mammary ducts join to form a wider mammary ampulla which is connected to lactiferous duct through which milk is sucked out.
Which of the following structure is not a part of the male reproductive system?
[Re-NEET 2026]
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Find the correct statements:
A. In human pregnancy, the major organ systems are formed at the end of 12 weeks.
B. In human pregnancy the major organ systems are formed at the end of 8 weeks.
C. In human pregnancy heart is formed after one month of gestation.
D. In human pregnancy, limbs and digits develop by the end of second month.
E. In human pregnancy the appearance of hair is usually observed in the fifth month.
Choose the correct answer from the options given below:
[NEET 2025]
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Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: During menstrual cycle, the ovulation takes place approximately on \({14}^{\text{th }}\) day.
Reason R : Rapid secretion of LH in the middle of menstrual cycle induces rupture of Graafian follicle and thereby the release of ovum.
In the light of the above statements, choose the most appropriate answer from the options given below.
[Re-NEET 2024]
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Match List I with List II related to embryonic development at various months of pregnancy :
| List I | List II |
| A. The foetus movement starts and hair appears on the head | I. 24 weeks of pregnancy |
| B. The foetus develops limbs and digits | II. 20 weeks of pregnancy |
| C. The foetus develops external genital organs | III. 8 weeks of pregnancy |
| D. The foetus body is covered with fine hair; eyelids separate and eyelashes are formed | IV. 12 weeks of pregnancy |
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Twins are born to a family that lives next door to you. The twins are a boy and a girl. Which of the following must be true?
[NEET 2025]
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The first menstruation is called :
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Which of the following hormone is not secreted by human placenta?
[Re-NEET 2026]
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Which of the following is not a component of Fallopian tube?
[NEET 2024]
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Given below are two statements :
Statement I : The presence or absence of hymen is not a reliable indicator of virginity.
Statement II : The hymen is torn during the first coitus only.
In the light of the above statements, choose the correct answer from the options given below :
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Arrange the following parts in human Mammary gland, traversing the route of milk ejection.
A. Mammary duct
B. Lactiferous duct
C Mammary alveolus
D. Ampulla
E. Mammary tubule
Choose the correct answer from the options given below:
[Re-NEET 2024]
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Which of the following is not a component of Fallopian tube?
[NEET 2024]
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Given below are two statements:
Statement I: Ovulation is caused by LH surge leading to rupture of Graafian follicles.
Statement II: Graafian follicle remaining after ovulation transform into corpus luteum and secretes large amount of estrogen.
In the light of the above statements, choose the most appropriate answer from the options given below:
[Re-NEET 2026]
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Spermatogonia undergo a series of cell divisions to produce sperms. Select the correct statements from the following :
A. Spermatogonia always undergo meiotic cell division.
B. Primary spermatocytes divide mitotically to produce secondary-spermatocytes.
C. Secondary spermatocytes, through their second meiotic division, produce haploid spermatids.
D. Spermatids produce spermatozoa through mitosis.
E. Spermatids transform into spermatozoa by spermiogenesis.
Choose the correct answer from the options given below :
[NEET 2026]
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The covering of ovum at ovulation is ______.
[Re-NEET 2026]
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Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R :
Assertion A: Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby.
Reason R : Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby.
In the light of the above statements, choose the most appropriate answer from the options given below:
[NEET 2024]
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Which of the following secretes the hormone, relaxin during the later phase of pregnancy
[NEET 2021]
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In human beings, at the end of 12 weeks (first trimester) of pregnancy, the following is observed
[Re-NEET 2020]
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Select the correct option of haploid cells from the following groups.
[Re-NEET 2020]
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Extrusion of second polar body from egg occurs
[NEET 2019]
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Which of the following hormone levels will cause release of ovum (ovulation) from the Graafian follicle?
[NEET 2020]
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Which of the following hormone levels will cause release of ovum (ovulation) from the Graffian follicle?
[NEET 2020]
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Receptors for sperm binding in mammals are present on.
[NEET 2021]
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Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Endometrium is necessary for implantation of blastocyst.
Reason R : In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.
In the light of the above statements, choose the correct answer from the options given below :
[NEET 2023]
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Which of the following statements are correct regarding female reproductive cycle?
A. In non-primate mammals, cyclical changes during reproductive life are called estrous cycle.
B. First menstrual cycle begins at puberty and is called menopause.
C. Lack of menstruation may be indicative of pregnancy.
D. Cyclic menstruation extends between menarche and menopause.
Choose the most appropriate answer from the options given below.
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Receptors for sperm binding in mammals are present on:
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Which of the following secretes the hormone, relaxin during the later phase of pregnancy?
[NEET 2021]
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Meiotic division of the secondary oocyte is completed
[NEET 2020]
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Given below are two statements :
Statement I : Vas deferens receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct.
Statement II : The cavity of the cervix is called cervical canal which along with vagina forms birth canal.
In the light of the above statements, choose the correct answer from the options given below :
[NEET 2023]
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Which of these is not an important component of initiation of parturition in humans
[NEET 2021]
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Which of these is not an important component of initiation of parturition in humans?
[NEET 2021]
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Which of the following statements are correct regarding female reproductive cycle?
A. In non-primate mammals, cyclical changes during reproductive life are called estrous cycle.
B. First menstrual cycle begins at puberty and is called menopause.
C. Lack of menstruation may be indicative of pregnancy.
D. Cyclic menstruation extends between menarche and menopause.
Choose the most appropriate answer from the options given below.
[NEET 2023]
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Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: During menstrual cycle, the ovulation takes place approximately on \({14}^{\text{th }}\) day.
Reason R : Rapid secretion of LH in the middle of menstrual cycle induces rupture of Graffian follicle and thereby the release of ovum.
In the light of the above statements, choose the most appropriate answer from the options given below.
[Re-NEET 2024]
Options are free to see. Unlock the correct answer and full explanation with Pass.
Given below are two statements :
Statement I : Vas deferens receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct.
Statement II : The cavity of the cervix is called cervical canal which along with vagina forms birth canal.
In the light of the above statements, choose the correct answer from the options given below :
Options are free to see. Unlock the correct answer and full explanation with Pass.
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