Question

Mark the correct statement(s).
i) Spermatogenesis starts at puberty.
ii) Spermatogonia are diploid.
iii) Primary spermatocytes are haploid.

• A. Only ii and iii are correct.
• B. i, ii and iii are correct.
• C. Only i is correct.
• D. Only i and ii are correct.

Answer 1

The correct option is D Only i and ii are correct.

The formation of sperms also called spermatogenesis begins at puberty.

Sperms are produced by the diploid male germ cells called spermatogonia. They undergo mitotic divisions and increase in number. Some of the spermatogonia grow into large primary spermatocytes by obtaining nutrients from the nursing Sertoli cells.

The DNA content remains the same (2n), i.e., both spermatogonia and primary spermatocyte are diploid.