17.1: Genes and Variation

Question 1

gene pool

Answer 1

all the genes, including all the different alleles for each gene, that are present in a population at any one time

Question 2

allele frequency

Answer 2

the number of times that an allele occurs in a gene pool compared with the number of alleles in that pool for the same gene

Question 3

single-gene trait

Answer 3

trait controlled by one gene that has two alleles

Question 4

polygenic trait

Answer 4

trait controlled by two or more genes