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Which layer of blastomere gets attached to the endometrium of the uterus?

Which layer of blastomere gets attached to the endometrium of the uterus? Correct Answer Trophoblast

The blastomere is composed of an internal inner mass of cells and an external layer of cells called the trophoblast. The trophoblast attaches to the endometrium and forms the fetal part of the placenta.

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