EVOLUTION
THE ORIGIN OF LIFE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Having a large population that stays in one area
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Mutations occuring within a small population
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randomly mating within a large poppulation
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Having a large population where they are no mutations
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Detailed explanation-1: -Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error). Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.
Detailed explanation-2: -Random forces lead to genetic drift These changes in relative allele frequency, called genetic drift, can either increase or decrease by chance over time. Typically, genetic drift occurs in small populations, where infrequently-occurring alleles face a greater chance of being lost.
Detailed explanation-3: -Natural selection, genetic drift, and gene flow are the mechanisms that cause changes in allele frequencies over time.
Detailed explanation-4: -A change in the frequency of an allele in a population due to random sampling of organisms is called genetic drift or allelic drift. A gene pool is defined as the set of all genes of a particular species. The transfer of alleles or genes from one population to another is called gene flow or gene migration.
Detailed explanation-5: -The frequency of occurrence of a specific allele or gene in a population usually remains fixed until the population is exposed to certain changes like mutation, genetic flow, genetic recombination, genetic drift and natural selection.