Question

Match List I with List II :

List - I		List – II
A.	Gene pool	i.	Stable within a generation
B.	Genetic drift	ii.	Change in gene frequency by chance
C.	Gene flow	iii.	Transfer of genes into or out of population
D.	Gene frequency	iv.	Total number of genes and their alleles

Choose the correct answer from the options given below :

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

Answer 1

The Correct Option is B

 To solve the given question, we need to match the terms in List I with their corresponding definitions in List II. Let's analyze each term:

1. Gene pool: This term refers to the cumulative variety of genes present in a population. It includes all the different possible alleles and genes. The most fitting definition for "gene pool" is the "Total number of genes and their alleles," which corresponds to option iv in List II.
2. Genetic drift: This is a mechanism of evolution that leads to random changes in the frequency of alleles within a population. It occurs by chance rather than by natural selection. The definition that matches "genetic drift" is "Change in gene frequency by chance," which aligns with option ii.
3. Gene flow: This term describes the transfer of genetic material between separate populations. It can occur when individuals migrate from one population to another, thereby introducing or removing genetic material. The definition for "gene flow" is "Transfer of genes into or out of population," corresponding to option iii.
4. Gene frequency: This specifies how common a particular gene variant (allele) is within a population. It tends to be stable within a generation unless factors like mutation, selection, drift, or gene flow are at play. Therefore, the matching definition for "gene frequency" is "Stable within a generation," which is option i.

Based on this analysis, the correct match for the options given is:

List - I		List – II
A.	Gene pool	iv.	Total number of genes and their alleles
B.	Genetic drift	ii.	Change in gene frequency by chance
C.	Gene flow	iii.	Transfer of genes into or out of population
D.	Gene frequency	i.	Stable within a generation

Thus, the correct option is A-IV, B-II, C-III, D-I.