Evolutionary Agents and Their Effects

Evolutionary agents are forces that change the genetic structure of a population. In other words, they cause deviations from the Hardy-Weinberg equilibrium. The known evolutionary agents are mutation, gene flow, genetic drift, non-random mating, and natural selection. Although only natural selection results in adaptation, to understand evolutionary processes we need to discuss all of these evolutionary agents before considering natural selection in detail.

Generation I

Genotypes AA

Frequency of 0.45 genotypes in population

Aa 0.20

aa 0.35

Genotypes AA

Frequency of 0.45 genotypes in population

Aa 0.20

Frequency of alleles in population

Generation II

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Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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