AP BIOLOGY

EVOLUTION

EVOLUTION OF A POPULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The type of genetic drift that follows the colonization of a new habitat by a small group of individuals is called
A
the Hardy-Weinberg principle
B
the founder effect
C
directional selection
D
the bottleneck effect
Explanation: 

Detailed explanation-1: -The correct answer is: The founder effect.

Detailed explanation-2: -A founder effect, as related to genetics, refers to the reduction in genomic variability that occurs when a small group of individuals becomes separated from a larger population.

Detailed explanation-3: -Founder effect – a small number of individual colonize a new habitat. The allele frequencies of the new population will reflect the alleles of the founders, not the original population they came from.

Detailed explanation-4: -The founder effect is another extreme example of drift, one that occurs when a small group of individuals breaks off from a larger population to establish a colony.

Detailed explanation-5: -The difference between founder events and population bottlenecks is the type of event that causes them. A founder event occurs when a small group of individuals is separated from the Page 3 rest of the population, whereas a bottleneck effect occurs when most of the population is destroyed.

There is 1 question to complete.