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Nonamiya [84]
3 years ago
15

Are cells specialise by switching on all their genes?​

Biology
2 answers:
ELEN [110]3 years ago
6 0

Answer:

Explanation:

Each cell expresses, or turns on, only a fraction of its genes at any given time. The rest of the genes are repressed, or turned off. The process of turning genes on and off is known as gene regulation.

steposvetlana [31]3 years ago
4 0

Explanation:

All of the cells in an embryo start off identical and undifferentiated. These cells are called embryonic stem cells and can become specialised to form any type of cell. 

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