In frog chromosome no. is reduced to half
When $2^{nd}$ polar body is separated
When $2^{nd}$ polar body is divided
When $3^{rd}$ polar body is separated
When $1^{st}$ polar body is separated
Enzyme present in sperm acrosome to dissolve egg membrane is
Which cell organelle is absent in human sperm?
The disadvantage of parthenogenesis is
The allantois has the similar layers as present in the yolk sac. These are
The graafian follicle ruptures to release the secondary oocyte (ovum) from the ovary by the process called.....