EVOLUTION
EVOLUTION OF A POPULATION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Detailed explanation-1: -Answer and Explanation: This statement is false.
Detailed explanation-2: -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-3: -Natural selection can cause microevolution, or a change in allele frequencies over time, with fitness-increasing alleles becoming more common in the population over generations. Fitness is a measure of relative reproductive success.
Detailed explanation-4: -Explain why meiosis and random fertilization alone will not alter the frequency of alleles or genotypes in a population. Meiosis and random fertilization alone do not alter the gene pol because the genes do not actually change. The genes keep going back into the gene pool.
Detailed explanation-5: -Microevolution, or evolution on a small scale, is defined as a change in the frequency of gene variants, alleles, in a population over generations.