Question

Compare and Contrast spermatogenesis and oogenesis.

Answer 1

1.on the basis of gametes
spematogenesis-continuous production. Although from puberty to old age sperm cells are constantly being engendered, the production is subject to extreme fluctuations regarding both quantity and quality.
oogenesis-Using up the oocytes generated before birth.
Continual decrease of the oocytes, beginning with the fetal period.
Exhaustion of the supply at menopause.

2.on the basis of meiotic out put
spematogenesis-Four functioning, small (head 4 mm), motile spermatozoids at the end of the meiosis
oogenesis-One large, immotile oocyte (diameter 120 mm) and three shriveled polar bodies are left at the end of the meiosis