GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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genetic mutations in the population
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changes in the environment
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changes in the frequency of certain alleles in the population
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organism producing more offspring
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Detailed explanation-1: -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-2: -Individuals with variations better suited to the environment tend to produce more offspring than those with variations that are less well suited. As a result of selection, alleles are passed on to the next generation in frequencies different from their relative frequencies in the present population.
Detailed explanation-3: -Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
Detailed explanation-4: -In a population, allele frequencies are a reflection of genetic diversity. Changes in allele frequencies over time can indicate that genetic drift is occurring or that new mutations have been introduced into the population.
Detailed explanation-5: -One mechanism that drives evolution is natural selection, which is a process that increases the frequency of advantageous alleles in a population. Natural selection results in organisms that are more likely to survive and reproduce.