Fertilization restores
Haploidy from diploidy
Diploidy from polyploidy
Polyploidy from diploidy
None of these
Which distinguishes a morula from a blastula
Assertion : In morula stage, cells divide without increase in size.
Reason : Zona pellucida remains undivided till cleavage is complete.
What is true about cleavage in the fertilised egg in humans
Which event is possible when changes in layer of zona pellucida occurs by sperm at fertilizatioi time?
Write a note on pregnancy and embryonic development in human beings.