Natural selection acts most effectively on which type of traits?
Answer and explanation
Correct answer: Traits that are heritable and provide a survival advantage.
Natural selection requires variation among individuals, and its evolutionary effect is strongest when the variation is heritable and affects survival or reproduction. Individuals with a favourable inherited trait are more likely to reproduce and pass that trait onward, so its frequency may increase. Option A contains both requirements. Learned-only, non-genetic and identical traits cannot be efficiently selected across generations in the stated sense.
Frequently asked questions
What is the correct answer to this question?
Traits that are heritable and provide a survival advantage.
Why is this the correct answer?
Natural selection requires variation among individuals, and its evolutionary effect is strongest when the variation is heritable and affects survival or reproduction. Individuals with a favourable inherited trait are more likely to reproduce and pass that trait onward, so its frequency may increase. Option A contains both requirements. Learned-only, non-genetic and identical traits cannot be efficiently selected across generations in the stated sense.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Heredity and Evolution.
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