EVOLUTION
EVOLUTION OF A POPULATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cheetah populations reach their lowest levels with reduced diversity and as they rebound are so genetically similar they appear to be inbred.
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Affected individuals with blue skin can trace their ancestry back to one of the first settlers in the region.
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The environment of a fox population changes and over time foxes who are white survive and pass on their genes to their offspring.
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Humans choose two dogs they like the characteristics of and breed them together.
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Detailed explanation-1: -The first bottleneck event that cheetahs may have undergone occurred around 100, 000 years ago when cheetahs expanded their range into Asia, Europe, and Africa. This range expansion is believed to have occurred rapidly, dispersing the cheetahs over a very large area and thus restricting their ability to exchange genes.
Detailed explanation-2: -An example of a bottleneck Northern elephant seals have reduced genetic variation probably because of a population bottleneck humans inflicted on them in the 1890s. Hunting reduced their population size to as few as 20 individuals at the end of the 19th century.
Detailed explanation-3: -As a species, cheetahs have famously low levels of genetic variation. This can probably be attributed to a population bottleneck they experienced around 10, 000 years ago, barely avoiding extinction at the end of the last ice age.
Detailed explanation-4: -Q. Which of the following is an example of the bottleneck effect? Cheetah populations reach their lowest levels with reduced diversity and as they rebound are so genetically similar they appear to be inbred.