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Heredity

Evolution is ...

Question

Evolution is best defined as

A

Inheritance of acquired characters

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B

Descent by modifications

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C

Spontaneous generation

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D

Struggle for existence

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Solution

The correct option is B Descent by modifications
We can define evolution as 'descent with modification' from a common ancestor. Evolution only occurs when there is a change in gene frequency within a population over time. These genetic differences are heritable and can be passed on to the next generation.

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Reason: The principle of inheritance of acquired characters.

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(iii) The goal of evolution is to adapt organisms to the environment.
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ii) Speciation due to mutation
iii) Inheritance of Acquired characters
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