ZoologySudden addition or deletion of genes by chance in a small population is called

Sudden addition or deletion of genes by chance in a small population is called

A
Sewall Wright effect
B
mutation
C
gene flow
D
gene migration

Solution:

Sewall Wright is best known for his concept of genetic drift, called the Sewall Wright effect. It states that the change in allelic frequency in a small population can occur by chance.