When embryonic stem (ES) cells are injected into a host mouse blastocyst they contribute to all tissues of the animal. We cannot test this in humans, so we perform the test on mice - what happens when ES cells are injected under the skin of a host mouse?

Question

When embryonic stem (ES) cells are injected into a host mouse blastocyst they contribute to all tissues of the animal.  We cannot test this in humans, so we perform the test on mice - what happens when ES cells are injected under the skin of a host mouse?

Answer

The cells form a teratocarcinoma containing differentiated cell types

Answer

The cells fail to survive, and undergo apoptosis

Answer

The ES cells integrate into the epidermis and generate normal epidermal tissue

Answer

The cells survive and proliferate but fail to differentiate

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When embryonic stem (ES) cells are injected into a host mouse blastocyst they co...

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