10. Collared lizards in the eastern Ozarks used to be widespread, but now occur

Question

10. Collared lizards in the eastern Ozarks used to be widespread, but now occur in
remnant habitat patches isolated by dense forest. For each of the following scenarios (ae,
below), draw a bar graph showing the expected number of populations (out of 100) on
the Y axis versus the allele frequency for the given allele on the X axis 1000 generations
after habitat fragmentation.
Suggestion: Think about whether or not you expect fixation to have occurred in each
case, and how much divergence you expect among populations.

         Initial allele frequency     Migration rate                Effective population size
a                   0.5                                      0                              100
b                   0.8                                      0                                  100
c                   0.5                                      0                                    10,000
d                   0.5                                     0.1                                     100

Explanation / Answer

9) Inbred individuals are more likely to express recessive alleles because they are more
likely to be homozygous at all of their loci. If the recessive alleles are lethal or
deleterious an inbred individual will be more likely to suffer from their effects than
a non-inbred individual.

10)

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