Extrusion of second polar body from egg nucleus occurs
after entry of sperm but before fertilization
after fertilization
before entry of sperm into ovum
simultaneously with first cleavage
Melotic division of the secondary oocyte is completed
The figure shows a section of human ovary. Select the option which gives the correct identification of either $A$ or $B$ with function/ characteristic.
Process of spermatogenesis is under the regulatory influence of
Enzyme required for fertilization of sperm and ovum is located in the ......... of sperms.
$A$ : In spermatogenesis, the first haploid forms are spermatids.
$R$ : All the end of meiosis cells have haploid set of chromosomes.