if scientists inject mouse embryonic stem cells into early (blastomere stage) embryos, the embryos develop into normal mice and the stem cells can differentiate into all different cell types. in contrast, if cells from the later blastocyst stage are injected, they only give rise to 2 of the 3 cell lineages. this is because:

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04-11-2022
Biology

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if scientists inject mouse embryonic stem cells into early (blastomere stage) embryos, the embryos develop into normal mice and the stem cells can differentiate into all different cell types. in contrast, if cells from the later blastocyst stage are injected, they only give rise to 2 of the 3 cell lineages. this is because:

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singhanupama3490 singhanupama3490 · Answer 1 · 2022-11-16T05:42:34-05:00

In contrast, cells from the later blastocyst stage only give rise to two of the three cell lineages when injected. This is due to the fact that embryonic stem cells are totipotent, whereas blastocyst cells are pluripotent.

These totipotent cells have the ability to develop into a new organism. For about 5 or 6 days, the zygote repeats the mitotic process, producing a small ball of a few hundred cells known as a blastocyst. A totipotent cell is a single cell that, when given appropriate maternal support, can give rise to a new organism. A totipotent cell is one that can give rise to all extra embryonic tissues, plus all tissues of the body and the germline (less stringent definition),

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