A virus killed most of the seals in the North Sea (e.g. dropped the population from 8000 to 800). In an effort to help preserve the species, scientists caught 20 of the remaining seals and used them to start a new population in the northwest Pacific Ocean. Which of the following statements would accurately describe the new population?

EVOLUTION OF A POPULATION

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	The new seal population is genetically less diverse than the original population
B	The new seal population is genetically more diverse than the original population
C	There is equal genetic variety compared to the original population
D	None of the answers

Explanation:

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: -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.

Detailed explanation-3: -Gene flow is the movement of genes into or out of a population. Such movement may be due to migration of individual organisms that reproduce in their new populations, or to the movement of gametes (e.g., as a consequence of pollen transfer among plants).

Detailed explanation-4: -The new population is genetically different from the parent populations. For example: Pitcairn island is a group of volcanic islands. The calamities result in the development of the different human population on this island. This is an example of Founder’s effect.

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