Human Reproduction Questions — NEET Biology

Q1

Gonads develop from embryonic

A ectoderm

B endoderm

C mesoderm

D both mesoderm and endoderm

Correct Answer

Option C

Solution

(c) Gonads, kidneys and most muscles develop from the mesoderm.

Q2

Cleavage in mammalian egg is

A superficial meroblastic

B discoidal meroblastic

C unequal holoblastic

D equal holoblastic

Correct Answer

Option C

Solution

(c) Cleavage in human zygote is holoblastic but unequal — blastomeres differ in size.

Q3

What is true about cleavage in fertilized egg of humans?

A Meroblastic

B Starts when egg reaches uterus

C Starts in fallopian tube

D It is identical to normal mitosis

Correct Answer

Option C

Solution

(c) Cleavage (mitotic division) starts in the fallopian tube as zygote moves toward the uterus.

Q4

Which of the following layers in an antral follicle is acellular?

A Theca interna

B Stroma

C Zona pellucida

D Granulosa

Correct Answer

Option C

Solution

(c) Zona pellucida is an acellular glycoprotein membrane secreted by the secondary oocyte.

Q5

Meroblastic cleavage is a type of division

A horizontal

B partial / parietal

C total

D spiral

Correct Answer

Option B

Solution

(b) Different types of segmentation or cleavages are found in animals depending upon the amount of yolk & its distribution: Holoblastic: Complete division.

Meroblastic: Division occurs only in cytoplasm but not in yolk.

Eg. birds.

Q6

The secretory phase in the human menstrual cycle is also called

A luteal phase and lasts for about 6 days

B follicular phase lasting for about 6 days

C luteal phase and lasts for about 13 days

D follicular phase and lasts for about 13 days.

Correct Answer

Option C

Solution

(c) Secretory (luteal) phase lasts about 13 days; corpus luteum secretes progesterone.

Q7

The testes in humans are situated in the scrotum. The purpose served is for

A maintaining the scrotal temperature lower than the internal body temperature

B escaping any possible compression by the visceral organs

C providing more space for the growth of epididymis

D providing a secondary sexual feature for exhibiting the male sex

Correct Answer

Option A

Solution

(a) Scrotum maintains testicular temperature ~2°C below body temperature, optimal for spermatogenesis.

Q8

If for some reason, the vasa efferentia in the human reproductive system gets blocked, the gametes will not be transported from

A testes to epididymis

B epididymis to vas deferens

C ovary to uterus

D vagina to uterus

Correct Answer

Option A

Solution

(a) Vasa efferentia connects rete testis to epididymis; blockage prevents gametes leaving the testis.

Q9

The Leydig cells found in the human body are the secretory source of

A Progesterone

B intestinal mucus

C glucagon

D androgens

Correct Answer

Option D

Solution

(d) Leydig cells in the testes secrete androgens (mainly testosterone).

Q10

Middle piece of mammalian sperm possesses

A mitochondria and centriole

B mitochondria only

C centriole only

D nucleus and mitochondria

Correct Answer

Option A

Solution

(a) Middle piece of sperm contains mitochondria (energy) and centriole.