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Home » Which of the following statements is not true with respect to variation?a)All variations in a species have an equal chance of survivalb)Change in genetic composition results in variationc)Selection of variants by environmental factors forms the basis of evolutionary processes. d)Variation is minimum in asexual reproduction
Which of the following statements is not true with respect to variation?
a)All variations in a species have an equal chance of survival

b)Change in genetic composition results in variation
c)Selection of variants by environmental factors forms the basis of evolutionary processes.

d)Variation is minimum in asexual reproduction
Biology | CBSE | Class 10 | Heredity and Evolution | NCERT Exemplar | Science
Which of the following statements is not true with respect to variation?
a)All variations in a species have an equal chance of survival

b)Change in genetic composition results in variation
c)Selection of variants by environmental factors forms the basis of evolutionary processes.

d)Variation is minimum in asexual reproduction

Solution: Since only useful variation has a chance of surviving, statement a) is incorrect. To survive, nature selects the most adaptable variant. This is Darwin’s theory of Natural selection.

So, the correct answer is (a) All variations in a species have an equal chance of survival.

i

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