Polyspermy refers to
Formation of many sperms by a male
Changes in sperm nucleus
Formation of many sperms
Penetration of many sperms into an ovum simultaneously
It's Obvious
Fertilization is
In sexually reproducing animals the union of male and female gamete forms a cell which is called
How many divisions occur when a isolated cell is divided into $128$ cells
Identify the human developmental stage shown below as well as the related right place ofits occurrence in a normal pregnant woman, and select the right option for the two, together.
The outer layer of the blastocyst which forms the ectoderm is called
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