Biology

Which one of the following statements about morula in humans is correct?

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(a) It has almost equal quantity of cytoplasm as an uncleaved zygote but much more DNA (b) It has far […]

Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?

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(a) maintenance of the hypertrophical endometrial lining (b) maintenance of […]

Which one of the following is the correct matching of the events occurring during menstrual cycle?

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(a) Proliferative phase : Rapid regeneration of myometrium and maturation of Graffian follicle (b) Development of […]

The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testes is :

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(a) Spermatogonia – spermatocyte – spermatid – sperms (b) spermatid – spermatocyte – […]

The figure given below depicts a diagrammatic sectional view of the female reproductive system of humans. Which one set of three parts out of I – IV have been correctly identified?

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(a) […]

Given below is a diagrammatic sketch of a portion of human male reproductive system. Select the correct set of the names of the parts labelled A, B, C, D.

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(a) vas deferens […]

The testes are humans are situated outside the abdominal cavity insides pouch called scrotum. The purpose served is for

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(a) maintaining the scrotal temperature lower than the internal body temperature (b) escaping […]