Quest 3 Examples Flashcards
Rock Pocket mouse
example of frequency-independent selection, fitness associated with a trait is not directly dependent on the frequency of the trait in a population
malaria and sickle cell - Kuru
good example of overdominance
immune function in mice
the directional selection frequency is independent as the frequency of the allele dictates what goes to fixation. selection does not.
this is due to selection acting upon phenotype not genotype and the gene is not observed. Even if NZW/NZW is rare, still selected for
Drosophilia maggots, and elder flowers
examples of frequency-dependent selection
sunflowers
example of viability selection vs. fecundity selection. even though the hybrid flowers had high survival rates (viability) just like the wild type, their total number of viable seeds (fecundity) was drastically lower.