A layer of follicle cells surrounding a freshly ovulated mammalian egg is called _________ .
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Graafian Follicle
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Answer:
Graffian Follicles
Explanation:
Mammalian eggs have very less amount of yolk, that's why eggs are oligolecithal & isolecithal or microlecithal & homolecithal. 0.1 mm is the usually size of mammalian eggs.
These type of eggs has 2 egg-membranes:
(1) Zona pelucida: It is a transparent membrane like covering & is a primary membrane secreted by the ovum or oocyte.
(2) Corona radiata: It is a layer of follicular cells & these cells are attached to the surface of egg with hyaluronic acid. This is constituted as the secondary membrane, which is secreted by the ovary. These eggs
do not have tertiary membrane.
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