Assertion (A): Differences in a population are created by genetic variations.

Reason (R): Driving factor for variation is the source of sexual reproduction and also asexual reproduction.

A is true, R is false

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A is false, R is true

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A and R both are true

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A and R both are false

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Solution

The correct option is A
A is true, R is false

Diversity in a population is a result of genetic variations. Sexual and asexual reproduction are the sources of variations but frequency of variations is much higher in sexual mode than in asexual mode. Asexual modes generally have the least chances of variations.

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Similar questions

Q. Assertion :Asexual reproduction is more important with regard to biotechnology. Reason: Asexual reproduction preserves the genetic information while sexual reproduction permits variations.

Q. Assertion :Algae and fungi switch to asexual method of reproduction before the onset of adverse conditions. Reason: Asexual reproduction may introduce variations and leads to the formation of many clones.

Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because
(a) Sexual reproduction is a lengthy process
(b) Gametes of parents have qualitatively different genetic composition
(c) The genetic material comes from parents of two different species
(d) Greater amounts of DNA is involved in sexual reproduction

Q. Assertion :Asexual reproduction is also called blastogenesis. Reason: In asexual reproduction, there is no formation and fusion of gametes.

Q. Write two points of difference between asexual and sexual types of reproduction. Describe why variations are observed in the offspring formed by sexual reproduction?

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Assertion (A): Differences in a population are created by genetic variations. Reason (R): Driving factor for variation is the source of sexual reproduction and also asexual reproduction.

Assertion (A): Differences in a population are created by genetic variations.

Reason (R): Driving factor for variation is the source of sexual reproduction and also asexual reproduction.