Hardy Weinberg Flashcard

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

Back

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

Front

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

Back

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

Front

What is the Hardy-Weinberg equation?

Back

The Hardy-Weinberg equation is p² + 2pq + q² = 1.

Front

What does 2pq represent in the Hardy-Weinberg equation?

Back

2pq represents the frequency of heterozygous individuals in a population.

Front

If 64% of the population has the recessive phenotype, what is the value of q²?

Back

q² = 0.64.

Front

How do you calculate the frequency of the recessive allele (q)?

Back

To find q, take the square root of q². If q² = 0.64, then q = √0.64 = 0.8.

Front

How do you calculate the frequency of the dominant allele (p)?

Back

p = 1 - q. If q = 0.8, then p = 1 - 0.8 = 0.2.

Front

What is the percentage of heterozygous individuals (Rr) if q = 0.8?

Back

Using 2pq, if p = 0.2 and q = 0.8, then 2pq = 2(0.2)(0.8) = 0.32 or 32%.

Front

What does Hardy-Weinberg equilibrium indicate about a population?

Back

It indicates that the population is not evolving and that allele frequencies are stable.