Negative costimulation

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#XL - T Zoology

Incomplete lineage sorting (hemiplasy)

If you make a phylogenetic tree of how the alleles are related to each other, it does not mirror how the species split apart.

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#Id: 9146

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Effects of different evolutionary forces on allelic frequencies

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Nonrandom Mating Affects the Genotypic Frequencies of a Population.

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Nonrandom Mating - Nonrandom mating are two type,

1. Positive assortative mating - Like individuals to mate.

2. Negative assortative mating - Unlike individuals to mate

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Positive assortative mating refers to a tendency for like individuals to mate. For example, humans exhibit positive assortative mating for height.