Class 12 Biology Human Reproduction Pregnancy and Embryonic development

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The foetal membrane which is the source of the first blood corpuscles to enter the circulation of the embryo is called:

A
Amnion
B
Chorion
C
Trophoblast
D
Yolk sac

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Class 12 Questions

Class 12

Biology Questions

Chapter

Human Reproduction

Subtopic

Pregnancy and Embryonic development

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