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Question

How many sperms are formed by one primary spermatocyte?

A
4
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B
3
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C
2
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D
1
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Solution

The correct option is A 4
One primary spermatocyte (2n) undergoes meiosis I and produces two daughter cells, each of which is known as secondary spermatocyte.
A secondary spermatocyte (n) then undergoes meiosis II and produces two daughter cells, known as spermatids (n).
These spermatids undergo spermiogenesis to become sperm (n). Spermiogenesis is a process in which they grow a tail from the centrosome, a midpiece containing several mitochondria which helps in production of ATP, and head, which contains the acrosome and the nucleus containing the haploid set of chromosomes. Hence, 4 sperms are produced from 1 primary spermatocyte. Hence, option A is correct.

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