GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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overproduction (too many organisms)
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competition
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variation
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all of these
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Detailed explanation-1: -They are: mutation, non-random mating, gene flow, finite population size (genetic drift), and natural selection.
Detailed explanation-2: -Genetic Variation is Essential for Evolution by Natural Selection. For natural selection to occur, a population must have a wide variety of individuals with different traits. For example, natural selection would not influence fish body color if all individuals in a population were exactly the same color.
Detailed explanation-3: -Evolution by natural selection is the inevitable consequence of three simple conditions: variation, inheritance, and differential reproductive success.
Detailed explanation-4: -There are four principles at work in evolution-variation, inheritance, selection and time. These are considered the components of the evolutionary mechanism of natural selection.
Detailed explanation-5: -These factors are the “forces of evolution.” There are four such forces: mutation, gene flow, genetic drift, and natural selection.