Respuesta :
Answer:
Mutations are random. The mechanisms of evolution — like natural selection and genetic drift — work with the random variation generated by mutation. ... For example, exposure to harmful chemicals may increase the mutation rate, but will not cause more mutations that make the organism resistant to those chemicals.
Explanation:
Answer:
Mutation is random because it can happen in any part of the DNA, at any time, and the results are unpredictable, occasionally detrimental. Mutation generates new genetic sequences, new variation. Sometimes, the variation is subtle, like the single mutation that created the blue eye variant in humans.
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