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Human Reproduction

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

Vasa efferentia are the ductules leading from

  • testicular lobules to rete testis

  • rete testis to vas deferens

  • vas deferens to epididymis

  • epididymis to urethra


B.

rete testis to vas deferens

Rete testis is connected to caput epididymis by 12-20 fine tubules called vasa efferentia or ductuli efferens. These collect sperms from inside the testis and transfer them to the epididymis. Vas deferens arises from caudal epididymis, conducts sperms from epididymis to urethra.

Rete testis is connected to caput epididymis by 12-20 fine tubules called vasa efferentia or ductuli efferens. These collect sperms from inside the testis and transfer them to the epididymis. Vas deferens arises from caudal epididymis, conducts sperms from epididymis to urethra.


Ovulation takes place :
  • 2 weeks before the start of next menstrual cycle
  • 14th day of 28 days cycle
  • 10 days after the cease of previous monthly cycle
  •  All the above are correct.

B.

14th day of 28 days cycle

The chromosone in primary spermatocyte are :
  •  22 + X 
  • 22+Y
  • 44 + XX
  • 44 + XY

D.

44 + XY

Which of the following shows hermaphroditism and self fertilization ?
  • Earthworm
  • Tapeworm
  • Both A & B
  • Rotifers.

B.

Tapeworm

Primary spermatocyte produces 4 spermatozoa, but primary oocyte produces :
  • 1 ovum
  • 2 ova
  • 3 ova
  • 4 ova

A.

1 ovum

The process of differentiation of spermatid into a spermatozoa is known as :
  • spermatogenesis
  • gametogenesis
  • spermiogenesis
  • oogenesis

C.

spermiogenesis