OBJECTIVE LIFE SCIENCE
DEVELOPMENTAL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The innermost layer of the blastocyst is the
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endoderm
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gastrula
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ectoderm
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mesoderm
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Explanation:
Detailed explanation-1: -Endoderm is the innermost of the three primary germ layers in the very early embryo. The other two layers are the ectoderm (outside layer) and mesoderm (middle layer). Cells migrating inward along the archenteron form the inner layer of the gastrula, which develops into the endoderm.
Detailed explanation-2: -The endoderm is so called because it is the innermost of the three germ layers.
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