QuestionSBA
QuestionChoice
A small island population founded by a single boat is unlikely to have a large enough population for the Hardy-Weinberg equilibrium to be applicable. Small populations increase the effect of random chance during mating on the proportion of a population with a specific genotype, increasing the chance of a genetic variant becoming fixed in a population, such as pp = 1.
10001156
a
Population size
QuestionChoice
A neutral variant is by definition not selected for or against. If a variant were to be selected for or against, the proportion surviving and reproducing would become non-random and disrupt the Hardy-Weinberg equilibrium by altering the proportions of each genotype. For example, if the q variant was selected against, the population proportions would shift towards pp = 1.
10001158
c
Selection
QuestionChoice
A neutral, non-visible genetic variant is unlikely to affect mating choices. If it were to affect mating choices, then mating would become non-random and disrupt the Hardy-Weinberg equilibrium by altering the proportions of each genotype. For example, if individuals with pp genotypes attracted pp genotypes and qq genotypes attracted qq genotypes, the proportions would shift towards pp + qq = 1.
10001159
d
The variant affects mating choices
QuestionChoice
An isolated population is unlikely to have significant migration. If there was migration, individuals with different genotypes may not immigrate or emigrate in equal proportions to their respective population size, altering the proportions of each genotype on the island.
10001157
b
Migration
QuestionChoice
Although this is possible, it is very unlikely. Indeed, the population size is much more likely to affect the suitability for Hardy-Weinberg equilibrium. New mutations would disrupt the formula pp + 2pq + q = 1 by introducing another genetic variant, 'r'.

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10001160
e
New mutations arise in the gene locus
Concept
Chapter
2693
3891
Genetic Inheritance
Topic
156
Medical Genetics
12778
A neutral, non-visible genetic variant in a small, isolated island population founded by a single boat is unlikely to be in Hardy-Weinberg equilibrium because of what failed criterium?
a