Give basic difference between spermatogenesis and oogenesis.
Open in App
Solution
Oogenesis is fundamentally similar to spermatogenesis with regard to the
behaviour of chromosomes. But there are important differences between
oogenesis and spermatogenesis.
(i) one primary spermatocyte gives rise to
four spermatozoa, but one primary oocyte forms only a single ovum.
(ii)
when the primary spermatocyte divides, its cytoplasm is
equally distributed between the two secondary spermatocytes formed, but
during the division of the primary oocyte, almost all its cytoplasm goes
to the daughter cell which forms the secondary oocyte. The other
daughter cell (first polar body) though receives half the chromosomes of
the primary oocyte, it does not receive any cytoplasm.