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NCERT Exemplar · Class 12 · Biology

Chapter 7: Evolution

Practice each question, then open the answer or worked solution.

Very Short Answer Questions

15 questions
Q11Written answer

Among the five factors that are known to affect Hardy-Weinberg equilibrium, three factors are gene flow, genetic drift, and genetic recombination. What are the other two factors?

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Worked solution

Ans:  The two factors are: Natural selection and Mutation 


Q12Written answer

What is founder effect?

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Worked solution

Ans: There is the loss of genetic variation when a small group of individuals becomes isolated from a larger population.


Q13Written answer

Who among the Dryopithecus and Ramapithecus was more man-like?

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Worked solution

Ans: Ramapithecus


Q14Written answer

By what Latin name the first hominid was known?

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Worked solution

Ans: Homo habilis 


Q15Written answer

Among Ramapithecus, Australopithecines and Homo habilis - who

probably did not eat meat?

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Worked solution

Ans: Homo habilis