Graafian follicles are produced by the ovary by the process of
Oogenesis
Folliculargenesis
Ovulation
Oogenolysis
$A$ : Fertilin protein is present in the egg membrane.
$R$ : It helps in agglutination reaction
In man sperms move after ejaculation at a rate of nearly
When mouth develops from blastopore, the organism is called
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.
$GnRH$ stimulates two hormones from anterior lobe of pituitary