OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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stem cells can only come from embryos
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stem cells can only come from adult bone marrow
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stem cells do not ever change
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stem cells can develop into different specialized cells
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Detailed explanation-1: -These embryonic stem cells are pluripotent. This means that they can turn into more than one type of cell.
Detailed explanation-2: -Stem cells are different from other cells in the body in three ways: They can divide and renew themselves over a long time. They are unspecialized, so they cannot do specific functions in the body. They have the potential to become specialized cells, such as muscle cells, blood cells, and brain cells.
Detailed explanation-3: -Pluripotent stem cells have the ability to differentiate into all of the cells of the adult body. Adult stem cells are found in a tissue or organ and can differentiate to yield the specialized cell types of that tissue or organ.
Detailed explanation-4: -This process, whereby less specialised cells turn into more specialised cell types, is called “differentiation".