What is seen in zygote during embryogenesis ?
Only cell differentiation
Only mitosis
Mitosis and cell differentiation
Cell differentiation and mitosis
Select the incorrect sentence for post fertilization event.
The animals which lay fertilized or unfertilized eggs and whole development takes place outside the body of mother are called
Which one of the following generates new genetic combinations leading to variation?
In organisms, further developments of the zygote depends on.
Why the chances of survival of young ones is greater in viviparous ?