Multiple choice questions XXXXVII — task. Science CBSE, Class 10.

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1. Select the incorrect statement

Reduction in weight of the organism due to starvation is genetically controlled
Traits which are not inherited over generations do not cause evolution
Low weight parents can have heavy weight progeny
Frequency of certain genes in a population change over several generations resulting in evolution

2. The ratio of phenotype in F2 generation of a dihybrid cross is

3 : 1
2 : 1
1 : 2 : 1
9 : 3 : 3 : 1

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