All of the alleles of a specific gene in a population make up the
a. gene pool
b. mutation potential
c. dominant factor
d. chromosomes for that population

Option A, Gene pool

Explanation:

Let us define all the given options –  

Option A, gene pool – This represents the entire set of possible allele around a loci and thus can be referred to as pool of genetic information (Gene pool), Thus option A is correct

Option B, Mutation potential represents the mutation caused by certain change in regular genetic information, thus option B is incorrect

Option C, Dominant factor – It is the allele which is expressed most of the time and thus option C is incorrect

Option D, chromosomes for that population may not consists of all the alleles for a given gene, thus option D is also incorrect.

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation:

amber has allowed scientists to study dna that has been preserved over millions of years.