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What is the outer layer of blastocyst called?

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in Biology – Class 12 by (271k points)
What is the outer layer of blastocyst called?

(a) Blastomere

(b) Trophoblast

(c) Blastocoel

(d) Inner cell mass

I got this question during an internship interview.

This intriguing question comes from Human Reproduction in section Human Reproduction of Biology – Class 12

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The correct option is (b) Trophoblast

Easiest explanation: Blastocyst is formed from blastomeres. It is organized into an outer layer of cells called trophoblast and an inner layer of cells called inner cell mass.

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