GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The new seal population is genetically less diverse than the original population
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The new seal population is genetically more diverse than the original population
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There is equal genetic variety compared to the original population
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None of the answers
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Detailed explanation-1: -The drought lake is the best example of the Bottleneck effect because the event was random and the survivors lived due to random chance. A small number of the fish reestablished their population in the lake, their genetic diversity was also reduced.
Detailed explanation-2: -Evolution is a process that results in changes in the genetic material of a population over time. Evolution reflects the adaptations of organisms to their changing environments and can result in altered genes, novel traits, and new species.
Detailed explanation-3: -Evolution that occurs over a long period of time is called macroevolution. It might take place over millions of years. This scale of evolution occurs above the level of the species. Fossils provide evidence for evolution at this scale.
Detailed explanation-4: -Allele frequencies appear to change randomly as if the frequencies were drifting, thus a random loss or change in frequencies of alleles in a small population is Genetic drift.