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jasenka [17]
3 years ago
10

How dome some cells become brain cells and others become skin cells, when the DNA in all the cells is exactly the same. In other

words, if the instruction are exactly the same, how does one cell become a brain cell and another a skin cell?
Biology
1 answer:
bezimeni [28]3 years ago
8 0
All multicellular organisms develop from a single fertilized egg cell known as a zygote.  As this cell divides by mitosis, each new cell that is formed contains the exact same genetic material.  As the organism develop certain genes in certain cells are activated and others are inactivated so that cells develop into specialized cells such as brain cells and skin cells.
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What is the name for the science that studies evolution that oc-
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D. Population genetics

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Explanation:

microevolution - evolutionary change within a species or small group of organisms, especially over a short period. (Not studying the overall evolution in the population, just a single allele usually) Not it then

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What helps ID the cell ?
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am not sure of the answer

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