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Multiple Choice
In the context of population genetics, what does it mean for a population to be in Hardy-Weinberg equilibrium?
A
The population is experiencing a high rate of mutation leading to genetic drift.
B
The allele and genotype frequencies remain constant from generation to generation in the absence of evolutionary influences.
C
The population is undergoing rapid evolutionary changes due to natural selection.
D
The population is in a state where genetic recombination is not occurring.
Verified step by step guidance
1
Understand the concept of Hardy-Weinberg equilibrium: It is a principle that describes a stable genetic state in a population where allele and genotype frequencies remain constant over generations, provided that no evolutionary influences are acting on the population.
Identify the conditions required for Hardy-Weinberg equilibrium: These include no mutation, random mating, no gene flow, infinite population size, and no selection. These conditions ensure that allele frequencies do not change.
Recognize the implications of Hardy-Weinberg equilibrium: If a population is in Hardy-Weinberg equilibrium, it means that the genetic makeup of the population is stable and not evolving.
Differentiate Hardy-Weinberg equilibrium from other genetic phenomena: Unlike genetic drift, mutation, or natural selection, Hardy-Weinberg equilibrium implies no changes in allele frequencies due to these factors.
Apply the concept to population genetics: Use the Hardy-Weinberg equation, \( p^2 + 2pq + q^2 = 1 \), where \( p \) and \( q \) represent the frequencies of alleles, to calculate expected genotype frequencies and determine if a population is in equilibrium.