A. Albumen
B. Shell membrane
C. Shell
D. Germinal disc
Correct Answer:
Option D – Germinal disc
Explanation
General: Germinal disk (blastoderm) — a small, circular, white spot (2-3 mm across) on the surface of the yolk; it is where the sperm enters the egg. The nucleus of the egg is in the blastodisc. The embryo develops from this disk, and gradually sends blood vessels into the yolk to use it for nutrition as the embryo develops
A small mass of active protoplasm found directly under the vitelline membrane
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