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Define continuous variation.

Important Questions on Mechanism of Evolution

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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
The movement of a gene from one linkage group to another is called:
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
The mechanism that causes a gene to move from one linkage group to another is called:
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination

Given below is a representation of a kind of chromosomal mutation. What is the kind of mutation represented?

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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
To be successful in evolution, a mutation must occur in
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
Mutations are responsible for
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
When one or more genes are missing from middle part of chromosome, it is called
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
Gene mutation is caused by
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
To be evolutionarily successful, a mutation must be:
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
Two linked genes a and b show 40% recombination. The individuals of a dihybrid cross between ++/++ X ab/ab shall produce gametes as
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
The point mutations A to G, C to T, C to G and T to A in DNA are
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
Define variation.
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
Why is variation beneficial to the species but not necessarily for the individual?
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
In a mutational event, when adenine is replaced by guanine, it is a case of
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
An auxotroph is
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
Using imprints from a plate with complete medium and carrying bacterial colonies, you can select streptomycin resistant mutants and prove that such mutations do not originate as adaptation. These imprints need to be used
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
Which of the following statements is the most appropriate for sickle cell anaemia?
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination

Out of A-T, G-C pairing, bases of DNA may exist in alternate valency state owing to arrangements called

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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
Which of the following chemical is a base analogue?
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
Select the correct statement from the ones given below with respect to dihybrid cross.
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Biology>Genetics and Evolution>Mechanism of Evolution>Variation, Mutation and Recombination
The type of chromosomal aberration indicated in the diagram shows


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