Practicing Success

Target Exam

CUET

Subject

Biology

Chapter

Evolution

Question:

Match List-I with List-II.

List-I List-II
A. Genetic drift I. Change in allele frequency due to immigration and emigration
B. Stabilising selection II. Change in gene frequency due to chance factor
C. Gene flow III. More individuals acquire mean character value
D. Saltation IV. Single step large mutation

Choose the correct answer from the options given below:

Options:

A - I, B – II, C - III, D - IV

A - III, B - I, C - II, D - IV

A - I, B - III, C - IV, D - II

A - II, B - III, C - I, D - IV

Correct Answer:

A - II, B - III, C - I, D - IV

Explanation:

The correct answer is Option (4) - A - II, B - III, C - I, D - IV

List-I List-II
A. Genetic drift II. Change in gene frequency due to chance factor
B. Stabilising selection III. More individuals acquire mean character value
C. Gene flow I. Change in allele frequency due to immigration and emigration
D. Saltation IV. Single-step large mutation

Genetic drift: Genetic drift is the change in allele frequencies in a population due to random chance events, such as the founder effect or a population bottleneck.
Stabilising selection: It is a type of natural selection in which genetic diversity decreases as the population stabilizes on a particular mean value .In stabilising selection, more individuals acquire mean character value.
Gene flow : It is the change in allele frequency due to immigration and emigration.

Saltation is the single step large mutation.