Reproductive Biology / Medicine / Infertility MCQs – Exercise 1

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. GnRH pulse frequency of release from highest to level during menstrual cycle

Follicular phase > Early luteal phase >late luteal phase

Early luteal phase >late luteal phase> Follicular phase

Follicular phase>late luteal phase> > Early luteal phase

late luteal phase> Follicular phase> Early luteal phase

Q 2. During months with longest nights

Melatonin concentration rates are highest and conception rates are lowest

Melatonin concentration rates are highest and conception rates are highest

Melatonin concentration rates are lowest and conception rates are lowest

Melatonin concentration rates are lowest and conception rates are highest

Q 3. Most important mediator of circadian rhythm

Melatonin

Growth hormone

Serotonin

TSH

Q 4. Of the following glycoproteine hormones bata β unit most similar in

LH& FSH

LH & HCG

TSH & FSH

FSH & HCG

Q 5. Androgen production occurs in

Leyding cells under influence of LH

Sertoli cells under influence of LH

Leyding cells under influence of FSH

Sertoli cells under influence of FSH

Q 6. True statement include

cholesterol is building block of steroid hormones.

circulating cholesterol is used for steroid production

Placenta can not synthesize cholesterol from acetate.

all

Q 7. The gene, GNRH1, for the GnRH precursor is located on chromosome

Q 8. Nocturnal secretion of Melatonin associated with

Decrease sleep

Increase prolactin secretion

Increase core temprature

none

Q 9. GnRH is

Hypothalamic Nanopeptides

Hypothalamic decapeptides

Pituitary decapeptides

Pituitary Nanopeptides

Q 10. During conversion of cholesterol to steroid metabolites number of total Carbon atoms decrease sequentially. which statement is true

Progestin ( C-21)—-›Androgens( C-19)—-›Estrogens ( C-18)

Androgens( C-21)—-›Estrogens ( C-19)—-› Progestin ( C-18)

Estrogens ( C-21)—-› Progestin ( C-19) —-›Androgens( C-18)

Estrogens ( C-21)—-› Androgens( C-19)—-› Progestin ( C-18)

Q 11. Inhibin and Activin produced by

Ovary

Ovary, and pituitary

Ovary, Testes and Placenta

Ovary, Testes ,Placenta and pituitary

Q 12. Hormone under inhibitory control from hypothalamus

FSH

ACTH

Prolactin

Q 13. At baseline GnRH secretes from hypothalamusin pulse at a frequency of

1 pulse/hour

10 pulse/hour

1 pulse/day

10 pulse/day

Q 14. true statement about GnRH except

Released in pulsatile fashion

Synthesis occurs in arcuate nucleus

Decapeptide

Synthesis occurs in anterior pitutary

Q 15. Major estrogen produced in ovary

Oestrone ( E1)

Oestradiol ( E2)

Oestriol ( E3)

all are aquall secreted

Q 16. Corpus luteum secretes which hormone

Estrogen

Progesterone

Both

None

Q 17. Most biological important regulator of FSH gene

Inhibin

Activin

Follistatin

all equally inportant

Q 18. Posterior pituitary hormones are

Hexapeptides

Heptapeptides

Octapeptides

Nanopeptides

Q 19. which estrogen not produced in ovary

Oestrone ( E1)

Oestradiol ( E2)

Oestriol ( E3)

None

Q 20. LH receptors present in

Ovarian granulosa cells and theca cells

Testicular leyding cells

Testicular sertoli cells

all

Q 21. Hypothalamic nulei involved with the reproduction include

Locus cereleus

Mid brain raphe and limbic system

Pons and medulla

all

Q 22. Rate limiting mitochondrial enzyme that mediates all steps in the conversion of cholesterol to pregnenolone is

P450P10

P450scc

P450P30

P45scc

Q 23. Posterior pituitary hormones include ADH and oxytocin secreted by

Supra optic nuclei

Tuberoinfundibular nuclei

Paraventricular nuclei

a and c

Q 24. Of the following glycoproteine hormones alpha α unit is identical in

LH & FSH

LH ,TSH & FSH

LH ,TSH, HCG & FSH

Q 25. Anterior lobe derived embryologically from and posterior lobe derived embryologically respectively from

Rathke s pouch and neuroectoderm respectively

Both from Rathke s pouch

Both from neuroectoderm

Neuroectoderm and Rathke s pouch respectively

Q 26. True statement include regarding steroids

steroids excreted in bile and urine.

Most steroids conjugated as sulfates or glucuronoides before elimination

Conjugated hormones can serve as precursor to active hormone metabolite in target tissue.

all are true

Q 27. True statement include

Ovarian steroid production occur in 2 cell system.

theca cells produce androgens which converted into estrogen into granulosa cells

Theca cells responds to LH by increasing number of LDL receptors

all are true

Q 28. Progestrone produced in

Ovary & Testis

Adrenal gland

Placenta

all are true

Q 29. which of the following affect secretion of prolactin

Dopamine

Gnrh analogues

FSH

Prolactin

Q 30. Prolactin inhibiting factor corresponds to neurotransmitter

GABA

Serotonin

Norepinephrine

Dopamine

Reproductive Biology / Medicine / Infertility MCQs – Exercise 1

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Reproductive Biology / Medicine / Infertility MCQs – Exercise 1

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