In a population of 1000 individuals, 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is:

1. 0.4 2. 0.5
3. 0.6 4. 0.7
Subtopic:  Hardy Weinberg Law: 1 | Hardy Weinberg Law |
 76%
From NCERT
AIPMT - 2014
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Random unidirectional change in allele frequencies that occur by chance in all populations and especially in small populations is known as:- 
1. Migration 
2. Natural selection 
3. Genetic drift 
4. Mutation 
Subtopic:  Hardy Weinberg Law |
 79%
From NCERT
NEET - 2013
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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. Genetic 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:
1. A-III,B-II,C-I,D-IV
2. A-IV,B-II,C-III,D-I
3. A-I,B-II,C-III,D-IV
4. A-II,B-III,C-IV,D-I
Subtopic:  Hardy Weinberg Law |
 77%
From NCERT
NEET - 2024
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Variation in gene frequencies within populations can occur by chance rather than by natural selection. 
This is referred to as:

1. Genetic drift

2. Random mating

3. Genetic load

4. Genetic flow

Subtopic:  Hardy Weinberg Law |
 85%
From NCERT
AIPMT - 2013
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In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by?

1. p2 2. 2pq
3. pq 4. q2
Subtopic:  Hardy Weinberg Law: 1 | Hardy Weinberg Law |
 90%
From NCERT
NEET - 2016
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Consider the given two statements:
Assertion (A): Deviation from Hardy-Weinberg equilibrium is evidence of evolutionary change within a population.
Reason (R): Genetic drift, gene flow, mutation, non-random mating, or natural selection can lead to deviation from Hardy-Weinberg equilibrium.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A)
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.
 

 
Subtopic:  Hardy Weinberg Law |
From NCERT
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