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Important Questions on Evolution

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DPP UNIT VII & VIII GENETICS AND EVOLUTION UNIT VIII BIOLOGY IN HUMAN WELFARE NEET VOLUME 5>Chapter 3 - Evolution>TOPICWISE QUESTIONS>Q 139
Which of the following factors will not cause change in gene frequency?
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DPP UNIT VII & VIII GENETICS AND EVOLUTION UNIT VIII BIOLOGY IN HUMAN WELFARE NEET VOLUME 5>Chapter 3 - Evolution>TOPICWISE QUESTIONS>Q 140
Identify the wrong statement.
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DPP UNIT VII & VIII GENETICS AND EVOLUTION UNIT VIII BIOLOGY IN HUMAN WELFARE NEET VOLUME 5>Chapter 3 - Evolution>TOPICWISE QUESTIONS>Q 141
Hybrid obtained by mating horse and donkey is an example of
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DPP UNIT VII & VIII GENETICS AND EVOLUTION UNIT VIII BIOLOGY IN HUMAN WELFARE NEET VOLUME 5>Chapter 3 - Evolution>TOPICWISE QUESTIONS>Q 142
Population is said to be non-evolving if all of the following features exist, except
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DPP UNIT VII & VIII GENETICS AND EVOLUTION UNIT VIII BIOLOGY IN HUMAN WELFARE NEET VOLUME 5>Chapter 3 - Evolution>TOPICWISE QUESTIONS>Q 143
The frequency of recessive alleles in a population is 0.2. The number of heterozygotes in a population of 500 is:
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DPP UNIT VII & VIII GENETICS AND EVOLUTION UNIT VIII BIOLOGY IN HUMAN WELFARE NEET VOLUME 5>Chapter 3 - Evolution>TOPICWISE QUESTIONS>Q 144
If nature selects individuals acquiring value other than the mean character value, the type of natural selection is called
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DPP UNIT VII & VIII GENETICS AND EVOLUTION UNIT VIII BIOLOGY IN HUMAN WELFARE NEET VOLUME 5>Chapter 3 - Evolution>TOPICWISE QUESTIONS>Q 145

Read the following statement and identify the correct ones.

(i) Hinny and mare are hybrids produced by mating two different species.

(ii) In a population, new alleles arise due to mutations.

(iii) All the genes and their alleles found in an interbreeding population are called gene pool.

(iv) Drosophila pseudoobscura and Drosophila persimilis are examples of allopatric species. 

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DPP UNIT VII & VIII GENETICS AND EVOLUTION UNIT VIII BIOLOGY IN HUMAN WELFARE NEET VOLUME 5>Chapter 3 - Evolution>TOPICWISE QUESTIONS>Q 147
The presence of recessive trait in a population is 16%, the frequency of the dominant allele in this population is: