Reproduction Mcqs

Question 2

Question

Answer 2

Correct Answer

Question 3

What hormone does the hypothalamus secrete to initiate the reproductive cycle?

Answer 3

GnRH (Gonadotropin-releasing hormone)

Question 4

What hormones does GnRH stimulate the anterior pituitary to release?

Answer 4

FSH (follicle-stimulating hormone) and LH (luteinizing hormone)

Question 5

What hormone is responsible for maintaining the corpus luteum in early pregnancy?

Answer 5

hCG (human chorionic gonadotropin)

Question 6

Where is hCG produced during pregnancy?

Answer 6

By the chorion (tissue of the embryo)

Question 7

What happens to the corpus luteum if fertilisation does not occur?

Answer 7

It degenerates and stops producing hormones

Question 8

What structure takes over hormone production after the corpus luteum in pregnancy?

Answer 8

The placenta

Question 9

What is the role of the zona pellucida?

Answer 9

It’s a glycoprotein layer around the oocyte that protects and aids sperm binding

Question 10

What are granulosa cells and what do they secrete?

Answer 10

Follicle cells that support the oocyte and secrete estrogen and progesterone

Question 11

What forms the Graafian follicle?

Answer 11

A mature follicle containing a secondary oocyte, polar body, granulosa cells, and antrum

Question 12

What is the antrum in a developing follicle?

Answer 12

A fluid-filled space that appears in maturing follicles

Question 13

What phase of the uterine cycle involves the regrowth of the endometrium?

Answer 13

Proliferative phase (Days 6–14)

Question 14

What hormone maintains the endometrium in the secretory phase?

Answer 14

Progesterone

Question 15

What hormone triggers ovulation?

Answer 15

LH surge from the anterior pituitary

Question 16

Which cells produce testosterone in males?

Answer 16

Leydig cells (interstitial cells)

Question 17

What do Sertoli cells do?

Answer 17

Support sperm development and secrete inhibin

Question 18

What is the function of inhibin in males?

Answer 18

It inhibits FSH to regulate sperm production

Question 19

What does the prostate gland secrete and why?

Answer 19

Alkaline fluid to protect sperm from vaginal acidity

Question 20

What’s the main role of the seminal vesicles?

Answer 20

To provide fructose-rich fluid for sperm energy

Question 21

What structure in the sperm contains enzymes to penetrate the egg?

Answer 21

The acrosome (located in the head)

Question 22

When does meiosis II in oogenesis complete?

Answer 22

Only if fertilisation occurs

Question 23

A female has low levels of FSH and LH. What stage of the ovarian cycle is likely affected?

Answer 23

The follicular phase, because FSH and LH stimulate follicle growth

Question 24

If the endometrium does not thicken, what hormone is likely deficient?

Answer 24

Estrogen (responsible for endometrial proliferation in the proliferative phase)

Question 25

A man's sperm count is low, and his inhibin levels are high. What does this suggest?

Answer 25

Inhibin is suppressing FSH, which may reduce spermatogenesis

Question 26

What would happen if the corpus luteum did not degenerate after no fertilization?

Answer 26

Estrogen and progesterone levels would stay high, preventing menstruation

Question 27

How does hormonal feedback maintain balance in male reproduction?

Answer 27

High testosterone inhibits GnRH and LH; inhibin inhibits FSH — negative feedback

Question 28

Why is the LH surge important for ovulation?

Answer 28

It triggers the rupture of the Graafian follicle and release of the secondary oocyte