What is the Hardy-Weinberg principle?
Quick 10Q: Hardy Weinberg

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Biology
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
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.
2.
FLASHCARD QUESTION
Front
What is the equation for allele frequencies in a population?
Back
p + q = 1, where p is the frequency of the dominant allele and q is the frequency of the recessive allele.
3.
FLASHCARD QUESTION
Front
How do you calculate the frequency of homozygous recessive individuals?
Back
The frequency of homozygous recessive individuals is calculated as q^2, where q is the frequency of the recessive allele.
4.
FLASHCARD QUESTION
Front
If the frequency of the recessive allele is 0.2, what is the frequency of homozygous recessive individuals?
Back
0.04 (0.2^2 = 0.04).
5.
FLASHCARD QUESTION
Front
What does it mean if a population is in Hardy-Weinberg equilibrium?
Back
It means that the population's allele frequencies are not changing over time, indicating no evolution is occurring.
6.
FLASHCARD QUESTION
Front
What factors can disrupt Hardy-Weinberg equilibrium?
Back
Factors include mutation, migration, genetic drift, non-random mating, and natural selection.
7.
FLASHCARD QUESTION
Front
If the frequency of the dominant phenotype is 0.36, how do you find the frequency of the dominant allele?
Back
Use the equation p^2 + 2pq = frequency of dominant phenotype. Solve for p.
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