Hardy Weinberg

Front

What is the Hardy-Weinberg principle?

Back

The Hardy-Weinberg principle states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of evolutionary influences.

Front

What are the five conditions required for a population to be in Hardy-Weinberg equilibrium?

Back

1. No mutations 2. Random mating 3. No natural selection 4. Extremely large population size (no genetic drift) 5. No gene flow (migration) into or out of the population.

Front

What does 'p' represent in the Hardy-Weinberg equation?

Back

In the Hardy-Weinberg equation, 'p' represents the frequency of the dominant allele in the population.

Front

What does 'q' represent in the Hardy-Weinberg equation?

Back

In the Hardy-Weinberg equation, 'q' represents the frequency of the recessive allele in the population.

Front

How do you calculate the frequency of the homozygous dominant genotype using the Hardy-Weinberg equation?

Back

The frequency of the homozygous dominant genotype is calculated as p².

Front

How do you calculate the frequency of the heterozygous genotype using the Hardy-Weinberg equation?

Back

The frequency of the heterozygous genotype is calculated as 2pq.

Front

How do you calculate the frequency of the homozygous recessive genotype using the Hardy-Weinberg equation?

Back

The frequency of the homozygous recessive genotype is calculated as q².

Front

If 64% of a population has the recessive phenotype, what is the frequency of the recessive genotype?

Back

The frequency of the recessive genotype is 0.64.

Front

If the frequency of the recessive allele (q) is 0.25, what is the frequency of the homozygous dominant genotype?

Back

The frequency of the homozygous dominant genotype is 0.5625.

Front

What is genetic drift and how does it relate to Hardy-Weinberg equilibrium?

Back

Genetic drift is a mechanism of evolution that refers to random changes in allele frequencies in a population. It can disrupt Hardy-Weinberg equilibrium, especially in small populations.