Human female reaches menopause at the age of about

Which of the following is not the function of Sertoli cells (sustentacular cells)?

Meroblastic cleavage refers to which type of division of egg

Spleen develops from

Epiboly is the process of

Assertion : Senescence is the time when age associated defects are manifested.

Reason : Certain genes may be undergoing sequential switching on and off during one's life.