Prepare for NEET Biology Genetic Evolution (Hardy-Weinberg Principle) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert guidance to determine allele frequencies and population genetics equilibrium.
NEET Questions / Zoology / Genetic Evolution / Hardy-Weinberg Principle
In a population of butterflies, the allele for red wings (R) is dominant over the allele for white wings (r). If 75% of the butterflies have red wings, what is the frequency of the recessive allele (r) assuming the population is in Hardy-Weinberg equilibrium?
0.25
0.5
0.75
1.0
Which of the following conditions is NOT required for a population to be in Hardy-Weinberg equilibrium?
Random mating
No mutation
No gene flow
Small population size
In a population in Hardy-Weinberg equilibrium, the frequency of a dominant allele (A) is 0.6. What is the frequency of heterozygotes (Aa)?
0.36
0.48
0.16
0.64
If a population is in Hardy-Weinberg equilibrium and the frequency of homozygous recessive individuals is 0.09, what is the frequency of the dominant allele?
0.3
0.7
0.09
0.91
The Hardy-Weinberg principle states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. This principle provides a baseline for:
Predicting the exact genetic makeup of future generations
Determining the rate of mutation in a population
Determining whether evolution is occurring
Calculating the number of individuals in a population
A population of wildflowers has two alleles for flower color: red (R) and white (r). If the frequency of the red allele is 0.8 and the population is in Hardy-Weinberg equilibrium, what percentage of the population is expected to be heterozygous (Rr)?
64%
32%
16%
4%
In a population in Hardy-Weinberg equilibrium, the frequency of a dominant allele is 0.8. What is the frequency of the homozygous recessive genotype?
0.04
0.16
0.32
0.64
The Hardy-Weinberg principle states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. This principle is most useful for:
Predicting genotype frequencies
Explaining the origin of new alleles
Describing the process of natural selection
Calculating mutation rates
If a population is in Hardy-Weinberg equilibrium, and the frequency of the homozygous dominant genotype is 0.36, what is the frequency of the heterozygous genotype?
0.16
0.24
0.48
0.64
