BIOLOGY 1M03 Lecture Notes - Lecture 8: Anisogamy, Sexual Conflict, Frequency-Dependent Selection

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Effects of different types of natural selection on phenotypic variation. Non-random mating: different levels of gene flow in different parts of the human genome due to biased mate pairing. Effects of natural selection, drift, migration and mutation on genetic variation. Gene flow (migration), the movement of alleles form one population to another, occurs whenever individuals leave one population, join another, and breed. Gene flow tends to homogenize gene frequencies between the source and recipient populations. Gene flow between populations always tends to reduce genetic differences between them. A population is a group of individuals (usually from the same region) That has different allele frequencies from another group of individuals (usually from a different region) Gene flow homogenizes allele frequencies across populations. Different parts of the genome have different modes of inheritance. Gene flow between people of african and european ancestry in america. Slave trade brought men and women from africa to the americans.

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