Assertion [A]: Evolution is a continuous process that takes millions of years for speciation.
Reason [R]: During evolution only mutation leads to speciation.

Both assertion and reason are incorrect

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Assertion is correct but reason is wrong

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Both assertion and reason are correct

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Assertion is correct and reason explains the assertion

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Solution

The correct option is B
Assertion is correct but reason is wrong

Evolution is a slow and continuous process that takes a very long time to form a new species. Variations in species are caused not only by mutations but could also be due to other processes like genetic drift, gene flow and natural selection. Mutation is the random change in an organism’s genetic makeup which influences the population’s gene pool.

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Similar questions

Q. Assertion [A]: Evolution is a continuous process that takes millions of years for speciation.
Reason [R]: During evolution, only mutation leads to speciation.

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Reason (R) Only those collisions in which molecules have correct orientation and sufficient kinetic energy lead to compound formation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

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Reason (R) Polymerisation process induces toxic character in organic molecules.

(a) Assertion and Reason both are correct statement But reason does not explain Assertion.

(b) Assertion and Reason both are correct statement and Reason explains the Assertion.

(d) Assertion is correct statement and Reason is wrong statement.

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Reason (R) Network polymers have high molecular mass.

(a) Assertion and Reason both are correct statement But reason does not explain Assertion.

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(d) Assertion is correct statement and Reason is wrong statement.

(e) Assertion is wrong statement and reason is correct statement.

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Assertion [A]: Evolution is a continuous process that takes millions of years for speciation. Reason [R]: During evolution only mutation leads to speciation.

Assertion [A]: Evolution is a continuous process that takes millions of years for speciation.
Reason [R]: During evolution only mutation leads to speciation.