PATHOLOGY MCQ
SKIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It would increase
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It would increase because individuals with the genes pass it to offspring.
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It would decrease because they don’t need those genes.
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It would stay the same.
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Detailed explanation-1: -Because the amount of these molecules is determined genetically, the number of individuals in the next generation with the genes that cause more of the molecules would increase.
Detailed explanation-2: -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: -Genetic drift is the change in frequency of an existing gene variant in the population due to random chance. Genetic drift may cause gene variants to disappear completely and thereby reduce genetic variation.
Detailed explanation-4: -Since natural selection favors genotypes that are better able to survive and reproduce, a new “favored” (i.e., beneficial) allele will increase in frequency over a number of generations.