Primary spermatocytes $\xrightarrow[{{\rm{division}}}]{{{\rm{Meiotic}}}}$ secondary spermatocytes

Spermatogonia $\xrightarrow[{}]{{{\rm{Mitosis}}}}$ $\xrightarrow[{}]{{{\rm{Mitosis}}}}$ Sperms

Spermatogonium $\xrightarrow[{}]{{{\rm{Mitosis}}}}$ $\xrightarrow[{}]{{{\rm{Mitosis}}}}$ primary oocyte

Secondary spermatocytes $\xrightarrow[{{\rm{division}}}]{{{\rm{Mitotic}}}}$ spermatids

Rupture of hymen at the time of first coitus

Occurance of precocious pregnancy in woman

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NEET • BIOLOGY • HUMAN REPRODUCTION

Human reproduction practice · Easy

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Showing 1-30 of 85 questions

1 Easy

1 of 85

Understanding +4 | -1

A regular cycling woman is not menstruating which one of the following is the most likely root cause of this?

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Correct option: D

Fertilisation of the ovum

Option D (Fertilisation of the ovum) is correct because if a woman is not menstruating, the most likely reason is that she is pregnant due to fertilization of the ovum.

2 Easy

2 of 85

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Select right option

View answer and explanation

Correct option: C

Primary spermatocytes

\xrightarrow[{\mathrm{division}}]{{\mathrm{Meiotic}}}

secondary spermatocytes

Option C (Primary spermatocytes

\xrightarrow[{\mathrm{division}}]{{\mathrm{Meiotic}}}

secondary spermatocytes) is correct because primary spermatocytes undergo meiosis I to form secondary spermatocytes.

3 Easy

3 of 85

Understanding +4 | -1

Which of the following events is not associated with ovulation in human female?

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Correct option: B

Decrease in estradiol

Option B is correct because a decrease in estradiol is NOT associated with ovulation; instead, there is a surge in estradiol leading up to the LH surge and ovulation.

4 Easy

4 of 85

Remembering +4 | -1

Seminal vesicles are present at the base of

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Correct option: B

Bladder

Option B (Bladder) is correct because the seminal vesicles are located at the base of the bladder in males.

5 Easy

5 of 85

Remembering +4 | -1

The main function of fimbriae of Fallopian tube is

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Correct option: B

Help in collection of the ovum after ovulation

Option B (Help in collection of the ovum after ovulation) is correct because the fimbriae are finger-like projections that sweep the ovulated oocyte from the ovary into the fallopian tube.

6 Easy

6 of 85

Remembering +4 | -1

Neubenkern is a part to

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Correct option: C

Human sperm

The correct answer is C (Human sperm) because the nebenkern is a structure formed from mitochondria in developing sperm cells.

7 Easy

7 of 85

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Vasa efferentia are the ductules leading from

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Correct option: B

rete testes to vas deferens

Option B (rete testes to vas deferens) is correct because the vasa efferentia are small ducts that connect the rete testis to the epididymis, which then leads to the vas deferens.

8 Easy

8 of 85

Understanding +4 | -1

Which area experiences the greatest change during the menstrual cycle?

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Correct option: D

Endometrium

Option D (Endometrium) is correct because the endometrium undergoes the most significant changes during the menstrual cycle in preparation for implantation.

9 Easy

9 of 85

Understanding +4 | -1

The function of ovary is
(A) To produce female gamete (B) To provide the site of fertilization (C) To provide the site of implantation (D) To produce several steroid hormones

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Correct option: D

A and D

Option D (A and D) is correct because the ovary produces female gametes (ova) and several steroid hormones like estrogen and progesterone.

10 Easy

10 of 85

Understanding +4 | -1

Which one of the following events is correctly matched with the time period in a normal menstrual cycle?

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Correct option: B

Endometrium regenerates - 5 -14 days

Option B (Endometrium regenerates - 5 -14 days) is correct because the endometrium rebuilds during the follicular phase, typically from days 5 to 14.

11 Easy

11 of 85

Remembering +4 | -1

Menarche is

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Correct option: A

Rupture of endometrial lining of uterus for the first time in puberty of a girl

Option A (Rupture of endometrial lining of uterus for the first time in puberty of a girl) is correct because menarche refers to the first occurrence of menstruation in a female during puberty.

12 Easy

12 of 85

Understanding +4 | -1

Most mammals have their testis sac called scrotal sac which is for

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Correct option: D

Temperature regulation

Option D (Temperature regulation) is correct because the scrotal sac maintains a temperature slightly lower than body temperature, which is essential for spermatogenesis.

13 Easy

13 of 85

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Colostrum is important for newly born because

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Correct option: B

Colostrum have antibody

Option B (Colostrum have antibody) is correct because colostrum is rich in antibodies, particularly IgA, which provide passive immunity to the newborn.

14 Easy

14 of 85

Understanding +4 | -1

Choose the correct statement?

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Correct option: A

Spermiation –Spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules.

Option A (Spermiation –Spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules) is correct because spermiation is the process where mature spermatozoa are released from Sertoli cells into the lumen of the seminiferous tubules.

15 Easy

15 of 85

Understanding +4 | -1

Placenta faciliate

View answer and explanation

Correct option: D

All of the above

Option D (All of the above) is correct because the placenta facilitates the supply of oxygen and nutrients to the fetus and the removal of excretory materials from the fetus.

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16 Easy

16 of 85

Remembering +4 | -1

Several mammary ducts joins to form a wider mammary ampulla, which is connected to

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Correct option: A

Lactiferous duct

Option A (Lactiferous duct) is correct because mammary ampulla connects to the lactiferous duct, which carries milk to the nipple.

17 Easy

17 of 85

Remembering +4 | -1

Oviducts are also called

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Correct option: A

Fallopian tubes

Option A (Fallopian tubes) is correct because oviducts are another name for fallopian tubes, which transport the egg from the ovary to the uterus.

18 Easy

18 of 85

Remembering +4 | -1

Temperature of human testis is

View answer and explanation

Correct option: A

2-2.5 below body temperature

Option A (2-2.5 below body temperature) is correct because the human testis needs to be maintained at a temperature lower than the body temperature for proper spermatogenesis.

19 Easy

19 of 85

Remembering +4 | -1

Process of delivery of the foetus is called

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Correct option: A

Parturition

Option A (Parturition) is correct because parturition is the process of giving birth.

20 Easy

20 of 85

Understanding +4 | -1

Signals from fully developed foetus and placenta ultimately leads to a parturition which requires the release of

View answer and explanation

Correct option: B

Oxytocin from maternal pituitary

Option B (Oxytocin from maternal pituitary) is correct because the signals from the fetus and placenta ultimately lead to the release of oxytocin from the maternal pituitary gland, which stimulates uterine contractions.

21 Easy

21 of 85

Understanding +4 | -1

What happens during the follicular phase of menstrual cycle?

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Correct option: A

Proliferation of endometrium wall

Option A (Proliferation of endometrium wall) is correct because the follicular phase is characterized by the growth and thickening of the endometrium.

22 Easy

22 of 85

Understanding +4 | -1

Which is not a reliable indicator of virginity or sexual experience

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Correct option: B

Hymen

Option B (Hymen) is correct because the presence or absence of an intact hymen is not a reliable indicator of virginity or sexual experience.

23 Easy

23 of 85

Remembering +4 | -1

Hormone injected by doctors to induce delivery is

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Correct option: B

Oxytocin

Option B (Oxytocin) is correct because oxytocin stimulates uterine contractions, which helps in inducing labor and delivery.

24 Easy

24 of 85

Remembering +4 | -1

Lactation produces milk

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Correct option: A

Towards the end of pregnancy

Option A (Towards the end of pregnancy) is correct because lactation begins as pregnancy progresses and is fully established after childbirth.

25 Easy

25 of 85

Remembering +4 | -1

Structure connecting the foetus to placenta is

View answer and explanation

Correct option: A

Umbilical cord

Option A (Umbilical cord) is correct because the umbilical cord connects the fetus to the placenta, facilitating nutrient and waste exchange.

26 Easy

26 of 85

Understanding +4 | -1

In the beginning of menstruation what will happen?

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Correct option: B

Corpus luteum degenerates

Option B is correct because the beginning of menstruation is triggered by the degeneration of the corpus luteum, leading to a drop in progesterone and estrogen levels.

27 Easy

27 of 85

Understanding +4 | -1

Which of the following structure of the female reproductive system can be taken as homologous to the scrotal sac of the male?

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Correct option: B

Labia majora

Option B (Labia majora) is correct because the labia majora in females and the scrotal sac in males are homologous structures, both originating from the labioscrotal swellings during embryonic development.

28 Easy

28 of 85

Understanding +4 | -1

In Oogenesis haploid egg is fertilized by sperm at which stage

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Correct option: D

Ovum

Option D (Ovum) is correct because the haploid egg, now referred to as an ovum, completes meiosis II only after fertilization by a sperm.

29 Easy

29 of 85

Remembering +4 | -1

Male pronucleus is I. Head of sperm II. Neek of sperm III. Middle piece of sperm IV. Tail of sperm

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Correct option: C

Option I (Head of sperm) is correct because the male pronucleus, containing the sperm's genetic material, is located within the head of the sperm.

30 Easy

30 of 85

Understanding +4 | -1

Select the hormones is essential for supporting the fetal growth. Metabolic changes in the mother and maintenance of pregnancy

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Correct option: C

Progesteron, Cortisol, Prolactin, thyroxin

Option C (Progesteron, Cortisol, Prolactin, thyroxin) is correct because Progesterone is essential for maintaining pregnancy, cortisol for metabolic changes, prolactin for lactation preparation, and thyroxin for overall metabolic regulation.

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