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Question
Which of the following statements is not true with respect to variation?
Options
All variations in a species have equal chance of survival
Change in genetic composition results in variation
Selection of variants by environmental factors forms the basis of evolutionary processes.
Variation is minimum in asexual reproduction
Solution
All variations in a species have equal chance of survival
Explanation -
Variations are produced due to inaccuracy in DNA copying mechanisms and sexual reproduction. All variations in a species do not confer equal survival advantages. So, the statement given as option (a) is not true for variation.
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