1. Summary of Gametogenesis
By definitionGametogenesisis the production of
gametes by meiosis.
1.Spermatogenesis is production of mature sperm
Sperm are small and motileand are produced
throughout the lifeof a sexuallymaturemale.
2.Oogenesis is development of mature oocytes
(eggs).
Oogenesisis developmentof matureoocytes(eggs)
and can take manyyears
Eggs containstorednutrientsand are much larger.
2. Difference between
Spermatogenesis and oogenesis:
1.In oogenesis, one egg forms from each cycle of
meiosis;in spermatogenesis four spermform
from each cycle of meiosis.
2.Oogenesisstops later in lifein females;
spermatogenesis continues throughoutthe
adult lifeof males
3.Oogenesishas long interruptions;
spermatogenesis producessperm from
precursorcells in a continuoussequence
