EVOLUTION
DARWIN’S THEORY OF NATURAL SELECTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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directional selection
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stabilizing selection
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disruptive selection
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genetic drift
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Detailed explanation-1: -Directional selection occurs when individuals at one end of the curve have higher fitness than individuals in the middle or at the other end. The range of phenotypes shifts because some individuals are more successful at surviving and reproducing than others.
Detailed explanation-2: -Directional selection: Directional selection occurs when a single phenotype is favored, causing the allele frequency to continuously shift in one direction.
Detailed explanation-3: -When individuals at the upper and lower ends of the curve have higher fitness than individuals near the middle, disruptive selection takes place.
Detailed explanation-4: -Disruptive selection: Both extreme phenotypes have a higher fitness than intermediate phenotypes.
Detailed explanation-5: –Intermediate phenotypes have higher fitness.