Q: Which equation would you use to solve for the inbreeding coefficient $$F$$ given observed heterozygosity?

$$F = 1 - \frac{\text{observed heterozygosity}}{2pq}$$

Question 1

Which of the following is NOT an assumption of Hardy-Weinberg equilibrium (HWE)?

Accepted Answer

No environmental heterogeneity

Question 2

Inbreeding can be incorporated into Hardy-Weinberg models through the introduction of the inbreeding coefficient $$F. $$What does $$F$$ represent?

Accepted Answer

The probability that two alleles in an individual are identical by descent

Question 3

Which equation correctly models the decrease in heterozygosity due to inbreeding?

Accepted Answer

$$H_F = H_O (1-F)$$

Question 4

A population has allele frequencies $$p = 0.6$$ and $$q = 0.4. If $$the observed frequency of heterozygotes ($$A_{12}) is 0.375$$, what is the inbreeding coefficient $$F$$?

Accepted Answer

$$F = 0.22$$

Question 5

Which of the following best describes the effect of inbreeding on allele frequencies in a population?

Accepted Answer

Inbreeding does not change allele frequencies but affects genotype frequencies

Question 6

Inbreeding depression is defined as $$d = 1 - \frac{w_S}{w_O}. $$What do $$w_S$$ and $$w_O$$ represent?

Accepted Answer

$$w_S is $$the fitness of inbred crosses and $$w_O is $$the fitness of outbred crosses

Question 7

Which scenario is most likely to result in a rapid decrease in heterozygosity within a population?

Accepted Answer

Self-fertilization in a hermaphroditic species

Question 8

Which real-world example illustrates the consequences of inbreeding depression?

Accepted Answer

Increased mortality rate among children of first cousins compared to unrelated parents

Question 9

Isolation by distance (IBD) predicts that:

Accepted Answer

Individuals that are more spatially separated will be less genetically similar

Question 10

Which force is assumed to be most important in generating isolation by environment (IBE)?

Accepted Answer

Natural selection

Question 11

Species distribution modeling (SDM) uses which type of data to predict suitable habitat for a species?

Accepted Answer

Environmental data known as climate layers

Question 12

Which equation describes the frequency of heterozygotes after one generation of selfing, given allele frequencies $$p$$ and $$q$$?

Accepted Answer

$$pq$$

Question 13

Which of the following factors does NOT typically influence non-random mating in humans?

Accepted Answer

Mutation rate

Question 14

Wright’s F-statistics are used to:

Accepted Answer

Quantify the proportion of heterozygous individuals and population genetic structure

Question 15

In a population with substructure, the frequency of heterozygotes ($$A_{12}) is $$given by which equation?

Accepted Answer

$$2pq(1-F)$$

Question 16

Which of the following is a consequence of inbreeding in conservation biology?

Accepted Answer

Loss of function alleles expressed in homozygous recessive genotypes

Question 17

Which equation would you use to solve for the inbreeding coefficient $$F$$ given observed heterozygosity?

Accepted Answer

$$F = 1 - \frac{	ext{observed heterozygosity}}{2pq}$$

Question 18

Which of the following best describes the relationship between geographic distance and genetic difference in the context of isolation by distance?

Accepted Answer

Genetic difference increases as geographic distance increases

Question 19

In a hermaphroditic snail population, what is the expected effect of self-fertilization on heterozygosity over successive generations?

Accepted Answer

Heterozygosity decreases rapidly with each generation

Question 20

Which of the following is a real-world application of combining geographic distances and historical suitability estimates in population genetics?

Accepted Answer

Improving regression models for predicting genetic structure

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