EVOLUTION
EVOLUTION OF A POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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normal
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disruptive
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directional
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stabilizing
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Detailed explanation-1: -A population that is not undergoing natural selection displays what type of distribution? genetic drift.
Detailed explanation-2: -Traits not undergoing natural selection have a normal distribution.
Detailed explanation-3: -Which of the following is NOT a way in which natural selection affects the distribution of phenotypes? directional selection.
Detailed explanation-4: -Natural selection can only occur if there is variation among members of the same species. WHY? Variation in a population results from mutation and the recombination of alleles during meiosis and fertilization.
Detailed explanation-5: -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.