AP Biology Unit 7 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 conditions required for Hardy-Weinberg equilibrium?

Back

1. Large population size 2. No mutations 3. No migration 4. Random mating 5. No natural selection

Front

Define 'allele frequency'.

Back

Allele frequency is the proportion of a specific allele among all allele copies in a population.

Front

What is the equation for Hardy-Weinberg equilibrium?

Back

p² + 2pq + q² = 1, where p is the frequency of the dominant allele and q is the frequency of the recessive allele.

Front

If the frequency of the dominant phenotype is 0.36, what is the frequency of the dominant allele?

Back

0.2

Front

How do you calculate the frequency of the recessive allele?

Back

Use the formula q = √(frequency of homozygous recessive individuals).

Front

If there are 400 red flowers, 200 pink flowers, and 100 white flowers, how do you find the frequency of the recessive allele?

Back

Calculate q² (frequency of homozygous recessive) and then q = √(q²).

Front

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

Back

'p' represents the frequency of the dominant allele in the population.

Front

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

Back

'q' represents the frequency of the recessive allele in the population.

Front

If the frequency of recessive alleles is 0.2, what is the frequency of the homozygous recessive individuals?

Back

0.04