Question

If the addition of new genes to a new population occurs by chance but not multiple times, it is called

Gene flow
Mutation
Genetic drift
Gene recombination​

Answer 1

Answer:

If the addition of new genes to a new population occurs by chance but not multiple times, it is called GENETIC DRIFT

Answer 2

If the addition of new genes to a new population occurs by chance but not multiple times, it is called Genetic drift

Explanation:

1.Genetic drift is the drifting of the frequency of an allele relative to that of the other alleles in a population over time as a result of a chance or random event. An example where the effect of genetic drift is magnified is the so-called bottleneck effect. Synonyms: allelic drift; Sewall Wright effect

2.Genetic drift can be caused by a number of chance phenomena, such as differential number of offspring left by different members of a population

3.so that certain genes increase or decrease in number over generations independent of selection, sudden immigration or emigration of individuals in a population changing gene