Reproductive Biology / Medicine / Infertility MCQs – Exercise 14

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. Which of the following germ cell types is considered a true stem cell

Type A spermatogonia

Primary spermatocytes

Secondary spermatocytes

Round spermatids

Q 2. When performing a physical examination of the infertile male, which statement is TRUE?

Assessment of the presence or absence of vas deferens is ideally performed with ultrasound.

The normal adult testis volume is 20 mL.

A grade 2 varicocele is one that is visible through the scrotal skin.

A rectal examination assessing for the presence of a midline cyst is important in the evaluation of a man with unilateral absence of the vas deferens.

Q 3. Following is correct regarding medication and its association with impaired Spermatogenes is

Sulfalazine is associated with irreversible reduction in sperm count and morphology.

Tamsulosin causes an increase in antegrade ejaculation.

Finasteride results in dose-dependent reduction in sperm motility.

Cimetidine inhibits androgen production.

Q 4. All of the following are indications for a male infertility evaluation EXCEPT:

patients with risk factors for male infertility.

failure to conceive after 1 year of regular, unprotected intercourse.

presence of female infertility risk factors.

history of mumps orchitis before puberty.

Q 5. Which of the following is true regarding infertility?

Primary infertility is defined as infertility that is primarily due to a male factor.

Secondary infertility indicates prior conception with the current or previous partner.

frequency for couples attempting to conceive is every third day.

Ovulation kits measure midcycle follicle-stimulating hormone (FSH) levels to help time intercourse around ovulation.

Q 6. Major components of the epididymis include:

caput, corpus, and cauda.

globus minor, ductus deferens, and cauda

rete testis, efferent ductules, and caput.

efferent ductules, caput, and cauda.

Q 7. Spermiogenesis includes all of the following processes EXCEPT

loss of cytoplasm

formation of the acrosome

flagellar formation.

cell division

Q 8. Antibiotics known to be directly spermatotoxic include all of the following EXCEPT:

nitrofurantoin.

gentamycin

erythromycin.

ciprofloxacin.

Q 9. Normal developmental pattern of spermatogenic cells

Spermatogonia, spermatid, spermatocyte

Spermatogonia, spermatocyte, spermatid

Spermatid, Sertoli, spermatocyte

Spermatocyte, spermatogonia, spermatid

Q 10. When does a testosterone peak occur during a human male’s life

2 months

6 to 9 months

30 to 40 years

50 to 60 years

Q 11. Infertility is defined as failure to conceive after:

6 months of regular, unprotected intercourse.

9 months of regular, unprotected intercourse.

1 year of regular, unprotected intercourse.

2 years of regular, unprotected intercourse

Q 12. Androgen production is inhibited by

Cimetidine

Spironlactone

ketoconazole

all

Q 13. Which testis hormone is the major feedback inhibitor of LH secretion

Testosterone

Inhibin

Activin

Prolactin

Q 14. Elevated levels of prolactin influence testosterone production by

Inhibit gonadotrophin-releasing hormone (GnRH) and LH

Indirectly inhibit Sertoli cells

Directly inhibit Leydig cells

Upregulate inhibin

Q 15. percent of infertility is at least partially attributed to a male cause?

10%

20%

25%

50%

Q 16. All of the following lubricants are recommended for patients attempting to conceive except

KY jelly.

vegetable oil.

raw egg white.

preseed.

Q 17. TRUE regarding sperm function tests?

Enzymes important in the acrosome reaction include acrosin and trypsin.

The acrosome reaction test and sperm penetration assay (SPA) are clinically important and relevant tests.

An acrosome reaction test may be useful in patients with severe teratospermia and round-headed sperm.

In a PCT, good-quality mucus with shaking sperm indicate abnormal sperm penetration.

Q 18. A person takes injectable anabolic steroids to maximize muscle bulk, his fertility potential

normal, because exogenous testosterone does not impair production of endogenous testosterone.

low, because exogenous testosterone stimulates pituitary production of follicle-stimulating hormone (FSH) and luteinizing hormone (LH).

low, because exogenous testosterone inhibits pituitary production of FSH and LH.

low, because exogenous testosterone is not as potent as endogenous testosterone at nurturing spermatogenesis.

Q 19. With chronic obstruction, optimal sperm quality is found in what region of the epididymis

Proximal epididymis

Midepididymis

Distal epididymis

Efferent ducts

Q 20. blood–testis barrier Structural elements are observed in:

Sertoli–Sertoli cell junctions.

basement membranes.

Leydig cells.

desmosomes between spermatocytes.

Q 21. All the following statements are true regarding anti-sperm antibodies (ASA) except:

Direct ASA testing detects antibodies bound to sperm.

Indirect ASA testing is done only in females.

Tight junctions between Sertoli cells regulate the blood-testis barrier.

Vasectomy is the most common cause of the development of ASA

Q 22. Changes to sperm during epididymal transit include

increased positive charge

sulfhydryl reduction

decreased phospholipid content.

increased capacity for glycolysis.

Q 23. During their development within the male reproductive tract prior to ejaculation, sperm spend the majority of time in which organ?

Epididymis

Ejaculatory ducts

Seminal vesicle

Testis

Q 24. Regarding semen analysis all true except

Two separate samples at least 7 days apart should be analyzed.

Coitus interruptus is an accurate and reliable method of obtaining semen.

Only 50% of men will have a recognizable cause of infertility on the basis of the standard semen analysis.

The most common cause of low-volume ejaculate is incomplete collection.

Q 25. True statement about semen analysis is

Normal sperm count is reported as greater than 40 million sperm per milliliter.

Antisperm antibodies usually manifest themselves through abnormal morphology.

The acrosome compromises 20% of the sperm head.

The Endtz test is used to differentiate nonsperm round cells in semen between white blood cells and immature germ cells.

Q 26. characteristic of meiosis

Cellular DNA content doubles during the first (meiotic) cell division

Chromosome number is maintained.

Homologous chromosomes (nonsister) pair during the second cell division.

Crossing over is present.

Q 27. The sperm region containing mitochondria is the

head.

acrosome

midpiece

tail

Q 28. After ejaculation the contents of the vas deferens are

returned to the seminal vesicles

maintained in the ampulla

released into the ejaculatory ducts

propelled back into the epididymis

Q 29. Following occurs during spermiogenesis

Division of type B spermatogonia to form primary spermatocytes

Cellular remodeling within the basal compartment of the seminiferous tubule

DNA replication

Nuclear compaction

Q 30. Following statements about testosterone is most accurate

It exists mainly in the unbound or “free” form in the circulation.

It is regulated by follicle-stimulating hormone

Its production is increased by excess prolactin.

Its metabolite is dihydrotestosterone (DHT).

Reproductive Biology / Medicine / Infertility MCQs – Exercise 14

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Reproductive Biology / Medicine / Infertility MCQs – Exercise 14

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