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In which of the following organism testes descends into scrotum in breeding season but in non-breeding season goes up

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Important Questions on Human Reproduction

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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 47
In most mammals, the testes are located in scrotal sac for
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 48
ICSH acts on
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 49
Sertoli cells are found in
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 50
What happens during fertilisation in humans after many sperms reach close to the ovum?
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 51
If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from:
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 52
A primary spermatocyte is
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 53
How many sperms are formed from a secondary spermatocyte?
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NTA Errorless Biology Volume-2>Chapter 3 - Human Reproduction>Ordinary Thinking>Q 54

The figure given below is an incomplete chart showing influence of hormones on gametogenesis in males. Examine the chart carefully and select the appropriate words for the blanks A, B, C and D

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