Question

There is an inbuilt tendency of variation during reproduction because of–
(i) Errors in DNA copying (ii) Sexual reproduction
(a) only (i)
(b) only (ii)
(c) both (i) and (ii)
(d) none of the above

Answer 1

Answer:

c) is your answer

Both are responsible for variations

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Answer 2

Explanation:

During reproduction, there is an "inbuilt tendency of variation". This is due to the error in DNA copying during both "sexual and asexual reproduction" and crossing over during sexual reproduction. This variation forms the 'basis of evolution'.

therefore,option (c) both (i) and(ii) ...................

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