Question

how DNA is responsible for variation?​

Answer 1

Answer:

Hope this will help you.

Explanation:

Genetic variation is a term used to describe the variation in the DNA sequence in each of our genomes. Genetic variation is what makes us all unique, whether in terms of hair colour, skin colour or even the shape of our faces.

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Answer 2

Explanation:

DNA is important part of reproduction as it passes hereditary characters from parents to offspring. Moreover copying of DNA brings some variations each time . The surviving cells are similar to parent cell but subtly different from each other. These variations allow a species to adjust with the changing environmental conditions and survive better.