Correct option is B
The process of oogenesis is as follows:

The process of oogenesis is as follows:

Hormones secreted by the placenta to maintain pregnancy are:
Oral contraceptive pills help in birth control by:
Human placenta is derived from:
Which one of the following sexually transmitted diseases (STD) correctly matches with its pathogen?
Acrosome reaction is triggered by:
Is there a Visible difference between sperms which contain X chromosomes and sperms which contain Y chromosomes?
The nutrients are supplied to the foetus from the mother through:
Which of the following is NOT a part of the female reproductive system?
What happens during menstruation?