Practice question · True or false
A differentiated cell has permanently deleted the genes it no longer needs.
Hints
- If genes were deleted, could an adult cell ever be reprogrammed?
- Cloning and induced pluripotent stem cells both prove the genome stays intact.
Show the answer
False
Why
False, the genome stays essentially complete, and cells differ by which genes they express. Dolly the sheep and induced pluripotent stem cells are both direct demonstrations: switch the expression pattern back and the cell regains its options.
Practise From Single Cells to Multicellular Bodies
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More questions on From Single Cells to Multicellular Bodies
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