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

  • Option 1)

    spermatogonia-spermatocyte-spermatid- sperms

  • Option 2)

    spermatid-spermatocyte-spermatogonia- sperms

  • Option 3)

    spermatogonia-spermatid-spermatocyte-sperms

  • Option 4)

    spermatocyte-spermatogonia-spermatid-sperms

 

Answers (1)

As we discussed in concept

Spermatogenesis -

In testis, the immature male germ cells (spermatogonia) produce sperms by spermatogenesis.

- wherein

spermatogenesis begins at puberty

 

 

Primary and secondary spermatocytes -

Primary spermatocytes periodically undergo meiosis. A primary spermatocyte completes the first meiotic division (reduction division)
leading to formation of two equal, haploid cells called secondary spermatocytes, which have only 23 chromosomes each.

-

 

 

Spermatids -

The secondary spermatocytes undergo the second meiotic division to produce four equal, haploid spermatids

-

 

 

 

 


Option 1)

spermatogonia-spermatocyte-spermatid- sperms

This option is correct.

Option 2)

spermatid-spermatocyte-spermatogonia- sperms

This option is incorrect.

Option 3)

spermatogonia-spermatid-spermatocyte-sperms

This option is incorrect.

Option 4)

spermatocyte-spermatogonia-spermatid-sperms

This option is incorrect.

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