Some mutations are a source of genetic variation. Which among the following can cause genetic variation that could lead to evolution?
A
Skin cells
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B
Body cells
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C
Brain cells
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D
Sex cells
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E
Embryo cells
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Solution
The correct option is C Sex cells Mutations that occur in somatic cells are never transmitted to the next progeny and thus don't lead to evolution. Mutations occurring in sex cells are passed to offspring and result in accumulation of genetic variations which are acted upon by natural selection leading to evolution.