Reproductive Biology / Medicine / Infertility MCQs – Exercise 5

The multiple choice questions in this online test paper focuses on Reproductive Biology / Reproductive Medicine / Infertility MCQ. If you are looking for self evaluation of your PG Medical entrance exam preparation then this online Reproductive Biology / Reproductive Medicine / Infertility MCQ Test Paper will help you to evaluate your exam preparation.

Instruction for REPRODUCTIVE BIOLOGY/ REPRODUCTIVE MEDICINE / INFERTILITY MCQs:

1- This online MCQ practice test paper contains 30 questions.
2- Each question in this online practice test paper have four options and only 1 option is correct.
3- You can view the answers of this practice test paper after submitting the practice test paper.
Note: The answers mentioned at the end of practice test are the best suitable option as per our knowledge. Users shall cross-check the answers with their textbooks.

Q 1. Undifferentiated spermatogenic cells are called

Spermatogonia.

primary spermatocytes.

secondary spermatocytes

spermatids.

Q 2. Seminal vesicles produce

sperm cells.

testosterone.

fructose-rich fluid.

estrogen.

Q 3. Male reproductive functions are controlled mainly by hormones from the hypothalamus

posterior pituitary and adrenal glands

anterior pituitary and adrenal glands.

posterior pituitary gland and testes.

anterior pituitary gland and testes.

Q 4. The last fluid to be expelled from the urethra during ejaculation comes from the

testes.

bulbourethral gland

prostate gland.

seminal vesicles.

Q 5. The immune system does NOT normally attack spermatogenic cells because

they are recognized as “self” structures

they do not have any antigens on their cell membranes

spermatogenic cells are protected by the blood-testis barrier.

the acrosome covers any antigens that would be recognized as foreign

Q 6. The function of the cremaster muscle is to

elevate the testes during sexual arousal and exposure to cold

generate peristaltic waves in the ductus deferens

control the release of secretions from the seminal vesicles

control the release of sperm cells from the testes into the epididymis

Q 7. of the following structures are unpaired

seminal vesicle

vas deferens

bulbourethral gland

prostate gland

Q 8. Final maturation of sperm cells occurs in the

epididymis

seminiferous tubules

prostate gland.

urethra

Q 9. Pap smear is used to detect the presence of abnormal cells in the

urethra.

ovary.

cervix.

vagina.

Q 10. Metabolic half life of AFP in humans is

2-5 days

5-7 days

8-12 days

12-15 days

Q 11. Which of the following cells are diploid?

secondary oocytes

secondary spermatocytes

primary spermatocytes

spermatids

Q 12. DAX-1 true all except

Encoded by the NR0B1 gene located on chromosome X

Responsible for DSS Syndrome (dosage sensitive sex reversal syndrome)

functions as an anti-testis gene by acting antagonistically to SRY

Duplication of DAX1 function leads to adrenal insufficiency and hypogonadotropic hypogonadism

Q 13. A function of FSH in the male is to

inhibit progesterone.

initiate testosterone production.

increase protein synthesis.

initiate spermatogenesis.

Q 14. Egg cells are transported in the female reproductive tract by the ____, whereas sperm are transported in the male reproductive tract by the _____.

action of ciliated epithelium in the uterine tubes; movements of their tails

activity of seminal vesicle secretion; activity of prostate gland secretions

peristaltic contractions of the vaginal wall; peristaltic contractions of the uterus

movement of their tails; lashing movements of their tails

Q 15. Sperm cells are stored primarily in the

vas deferens

ejaculatory ducts.

epididymis

seminal vesicles

Q 16. The gene that likely determines sex on the X chromosome has been identified in region

DAX-1

S AX-1

DAX-4

XAX-1

Q 17. The epididymis is a _____ and it functions to _____.

compartment inside a testis; secrete testosterone and form sperm

stage of spermatogenesis; form two sperm cells and semen

tightly coiled tube on the outside of the testis; store immature sperm as they mature

compartment that contains seminiferous tubules; ejaculate sperm and semen out of the penis

Q 18. During spermatogenesis, which of the following undergoes a meiotic division to produce haploid cells?

spermatids

secondary spermatocytes

primary spermatocytes

spermatogonia

Q 19. Spermatogenesis means formation of

Spermatocytes from Spermatogonia.

Spermatid from Spermatocytes through meiotic division.

Spermatid from Spermatocytes through mitotic division.

Spermatogonia from spermatid through meiotic division

Q 20. The first step in oogenesis is a

secondary oocyte divides to form a polar body and an egg cell.

primary oocyte divides to form a secondary oocyte and a first polar body.

follicle is converted to a corpus luteum.

corpus luteum is converted to a corpus albicans.

Q 21. The amount of testosterone in the blood is increased by

a high level of testosterone stimulating the hypothalamus.

the hypothalamus stimulating the testes to release LH.

LH causing the interstitial cells to release testosterone.

a high level of testosterone stimulating the testes to release more LH.

Q 22. The acrosome of a sperm cell contains

the chromosomes

mitochondria for energy production

testosterone

hyaluronidase for egg penetration

Q 23. The seminal vesicles are located

inferior to the prostate within the urogenital diaphragm.

within the lobules of the testes.

within the spermatic cord.

posterior and inferior to the urinary bladder, in front of the rectum

Q 24. The process of crossing-over, or recombination, of genes occurs during

meiosis I.

meiosis II

spermiogenesis.

spermiation.

Q 25. Following terms is/are correctly defined

ovulation: rupture of an ovarian follicle and release of a secondary oocyte and first polar body.

vestibule: space enclosed by the labia minora.

orgasm: pleasurable sense of physiological and psychological release.

All of the above

Q 26. Development of the testes, scrotum, and penis requires the presence of:

DAX-1

SRY

DHT

XAX-1

Q 27. The form (stage) of developing male gamete located nearest to the basement membrane of a seminiferous tubule is the

spermatd

primary spermatocyte

secondary spermatocyte

spermatogonium

Q 28. Correct sequence of cell stage in spermatogenesis

Spermatogoniaà SpermatocytesàSpermatidàSpermatozoa

Spermatogoniaà Spermatidà Spermatocytes àSpermatozoa

Spermatogoniaà Spermatocytes àSpermatozoaàSpermatid

Spermatogonia àSpermatidàSpermatozoaà Spermatocytes

Q 29. DMRT-1 true all except

DMRT1 gene is located at the end of the 9th chromosome.

Expressed in genital ridges and sertoli cells.

Increased during ovary development and decreased during testis development.

Mutations in this gene leads to male to female sex reversal.

Q 30. Leydig cells are located

in all the male accessory reproductive organs

interspersed among developing sperm cells in seminiferous tubules

lining the epididymis and ductus deferens

in spaces between adjacent seminiferous tubules

Reproductive Biology / Medicine / Infertility MCQs – Exercise 5

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Reproductive Biology / Medicine / Infertility MCQs – Exercise 5

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