Genetic exchange also happens between distantly related organisms by horizontal gene transfer, or HGT.

HGT is particularly important to prokarytotes and is the most common way by which they acquire new genes.

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#Section 3: Genetics, Cellular and Molecular Biology

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#Section 3: Genetics, Cellular and Molecular Biology

Effects of different evolutionary forces on allelic frequencies

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#Section 3: Genetics, Cellular and Molecular Biology

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#Section 3: Genetics, Cellular and Molecular Biology

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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#Section 3: Genetics, Cellular and Molecular Biology

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