EVOLUTION
EVOLUTION OF A POPULATION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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gene flow
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genetic drift
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natural selection
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all answers are correct
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Detailed explanation-1: -Three mechanisms can cause allele frequencies to change: natural selection, genetic drift (chance events that alter allele frequencies), and gene flow (the transfer of alleles between populations).
Detailed explanation-2: -There are five key mechanisms that cause a population, a group of interacting organisms of a single species, to exhibit a change in allele frequency from one generation to the next. These are evolution by: mutation, genetic drift, gene flow, non-random mating, and natural selection.
Detailed explanation-3: -Answer and Explanation: New alleles appear in a species by mutation. Explanation: Mutation can be defined as a change or alteration in the sequence of DNA that results in a change in the expressed phenotypic traits of the DNA sequence or gene. The mutation is responsible for introducing new alleles in the gene pool.
Detailed explanation-4: -Allele frequencies in a population may change due to gene flow, genetic drift, natural selection and mutation. These are referred to as the four fundamental forces of evolution.