Ncert Exercises & Solutions

The spermatogonia undergo division to produce sperm by the process of spermatogenesis. Choose the correct one with reference to above.

1.	Spermatogonia have 46 chromosomes and always undergo meiotic cell division.
2.	Primary spermatocytes divide by mitotic cell division.
3.	Secondary spermatocytes have 23 chromosomes and always undergo second meiotic cell division.
4.	Spermatozoa are transformed into spermatids.