Multiple Choice Questions

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Ovulation takes place in a month between

  • 11-14 day

  • 14-16 day

  • 15-28 days

  • 21-26 day


B.

14-16 day

Ovulation is the release of the secondary oocyte from the ovary. In humans, ovulation occurs about 14 days before the onset of the next menstruation.


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Refer to the given figure and choose the correct option regarding its parts labelled as A-F

  • B-Graafian follicle, F-Corpus luteum

  • C-Graafian follicle, A-Ovum

  • B-Primary follicle, C-Tertiary follicle showing antrum

  • E-Corpus callosum, D-Antrum cavity


The immediate cause of induction of ovulation in female is the large plasma surge of

  • progesterone

  • estradiol

  • LH

  • FSH


Acrosome is formed by

  • nucleus

  • Golgi apparatus

  • mitochondria

  • none of these


Progesterone is secreted by

  • Corpus luteum

  • Utreus

  • Placenta

  • Graafian follicle


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If mammalian ovum fails to get fertilized which one of the following is unlikely?

  • Corpus luteum will disintegrate

  • Estrogen secretion further decreases

  • Primary follicle starts developing

  • Progesterone secretion rapidly declines


Accessory sexual character in female is promoted by

  • androgen

  • progesterone

  • estrogen

  • testosterone


Sertoli cells are found in testis. These cells are

  • nurse cells

  • reproductive cells

  • receptor cells

  • None of the above


Grey crescent is the area

  • at the point of entry of sperm into ovum

  • just opposite to the site of entry of sperm into ovum

  • at the animal poles

  • at the vegetal pole


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The embryo at 16 celled stage is known as

  • morula

  • gastrula

  • blastula

  • blastomere


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