Eggs of eutheria, Biology

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EGGS OF EUTHERIA

This egg is small & round. The dimeter of human egg is 0.1 mm.

It has very little amount of yolk but they are also as alecithal egg.

The egg is covered by vitelline membrane, zona pellucida & corona radiata as primary egg membranes.

The cells of corona radiata remain cemented by hyaluronic acid.


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