A sperm without acrosome, cannot
Get food supply
Move
Penetrate into the seminal vesicle
Penetrate into the ovum
Which event is possible when changes in layer of zona pellucida occurs by sperm at fertilizatioi time?
The point of sperm entry during fertilization forms
Assertion : In morula stage, cells divide without increase in size.
Reason : Zona pellucida remains undivided till cleavage is complete.
In our society women are blamed for producing female children. Choose the correct answer for the sexdetermination in humans.
Normally the number of chromosomes in the nuclei of gametes that fuse at fertilization are