LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

EVOLUTION

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-Weinburg 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: -The founder effect is one form of genetic drift. This is the phenomenon in which there is a derivation of a new population from a small isolated group of individuals. The new population is genetically different from the parent populations.

Detailed explanation-4: -The founder effect describes the low genetic variation of a population derived from a small group of individuals in a new geographic location. Genetic drift is the random change of allele frequency in a population.

Detailed explanation-5: -The founder effect is an extreme example of “genetic drift.” Genes occurring at a certain frequency in the larger population will occur at a different frequency–more or less often–in a smaller subset of that population.

There is 1 question to complete.