A Source for Stem Cells to Be Found in Humans

Question

A source for stem cells to be found in humans is in
A) adults, in several specialized tissues.
B) All of the answer choices are correct.
C) skin cells.
D) embryos, after division of the original zygote.
E) the bone marrow.

Accepted Answer

Stem cells can be found in several specialized tissues in adults, such as the bone marrow and skin, as well as in embryos after division of the original zygote. Therefore, option B "All of the answer choices are correct" is the best choice.