Which scenario best illustrates the concept of migration?
A)Thousands of years ago Native Americans traveled long distances to settle in the Americas,causing different genetic traits to be favored over others.
B)The genetic mutation that causes sickle cell anemia also increases resistance to malaria,increasing the frequency of the diseased allele in the general population.
C)The prevalence of depression is greater in populations where the serotonin transporter gene translocated to position q21 along chromosome 17.
D)There is a higher than average rate of Ellis-van Creveld syndrome in the Amish community because the diseased allele was introduced by some original Amish settlers.

Question

Quizplus · Accepted Answer

Migration refers to the movement of organisms from one geographic region to another. In this scenario, Native Americans migrated over long distances to settle in the Americas, leading to genetic variation and the emergence of different genetic traits.

Answer: D
 Ellis-van Creveld syndrome is more prevalent in the Amish community because the diseased allele was introduced by some original Amish settlers. This illustrates the concept of migration, as the allele was brought into the population by migrating individuals.

Option B and C are not the best choices as they do not directly pertain to the concept of migration.

Which Scenario Best Illustrates the Concept of Migration