Q. Consider the following statements regarding genetic diversity:

Which of the statements given above is/are correct?

1 only

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2 only

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Both 1 and 2

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Neither 1 nor 2

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Solution

The correct option is C Both 1 and 2
Explanation:

Statement 1 is correct: The amount of genetic variation (gene pool) present in an interbreeding population is shaped or decided by the process of natural selection.

Statement 2 is correct: Selection leads to certain genetic attributes being preferred and results in changes in the frequency of genes within this pool. This forms the basis of adaptation among living organisms.

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Similar questions

11. Consider the following statements,

1] Genetic variation is the cornerstone of evolution, without which there can be no natural selection, and so a low genetic diversity decreases the ability of a species to survive and reproduce.

2] Greater the genetic diversity, the better is the population's ability to respond to pressures such as climate change and diseases.

Which of the above statements is/are correct?

Q. Consider the following statements:

1. Mutation is a change in the genetic structure of an organism.
2. Natural selection decides which mutations will live on and which ones will die out.
3. If the mutation is beneficial, the mutated organism survives to reproduce.

Which of the above is/are correct?

Q. Read the following statements
I) Directional selection occurs when natural selection favours one extreme of continuous variation.
II)Disruptive selection occurs when natural selection favours both extremes of continuous variation.
III) In directional selection, a population's genetic variance shifts toward a new phenotype when exposed to environmental changes.
IV)Random changes in gene frequencies due to chance in large population is called genetic drift.
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Q. Darwin and Wallace’s theory of evolution by natural selection failed to explain how
Statement 1: Nature operates to reduce variations in a population every generation.
Statement 2: New genetic variations can appear in a population every generation.
Statement 3: Variations lead to evolution, useful variations are transmitted to the next generation and other variations are eliminated.

Choose the correct option

Q. Consider the following statements with respect to biodiversity:

1. A decrease in the size of population of a species can lead to a decrease in genetic diversity.
2. A decrease in genetic diversity is likely to lead to a decrease in genetically inherited diseases.

Select the correct statements using the code given below.

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Q. Consider the following statements regarding genetic diversity: Which of the statements given above is/are correct?

Q. Consider the following statements regarding genetic diversity:

Which of the statements given above is/are correct?