OBJECTIVE LIFE SCIENCE
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Bald Eagles are hunted until near extinction, population recovers.
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Small group of iguanas floats to an island, starts a new population.
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Red fox pups are more likely to survive in a snowy environment if they are born white.
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Farmer chooses seeds from largest apples to plant next year. This results in larger apples from year to year.
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Detailed explanation-1: -ANSWER 1: The correct option is A I.e Bald eagles are hunted until near extinction, population recovers. Explanation: Bottleneck effect is example of genetic drift it is due to reduction in popu…
Detailed explanation-2: -Population bottlenecks leading to a drastic reduction of the population size are common in the evolutionary dynamics of natural populations; their occurrence is known to have implications for genome evolution due to genetic drift, the consequent reduction in genetic diversity, and the rate of adaptation.
Detailed explanation-3: -Earthquakes, floods, drought, a bad winter, fire, and disease can all abruptly reduce the numbers in a population and cause the bottleneck effect. Humans can also cause bottleneck effects with hunting, deforestation, developing infrastructure, and other abrupt environmental changes.