8.3 Genetic Variation Quiz Review

What is genetic variation?

• differences in genes between individuals

• forms of a gene

• a common set of genes

• an individual's phenotype

What is a gene pool?

• differences in genes between individuals

• different forms of a gene

• a common set of genes in a population

• an organism's DNA

The number of times an allele occurs in a gene pool compared with the number of times other alleles for the same gene occur.

• gene pool

• genetic variation

• mutations

• allele frequency

On a genetic basis, __________________ is any

change in the allele frequency in a population

• mutations

• evolution

• genetic variation

• gene pool

What are the three sources of genetic variation? Check all that apply!

• mutations

• lateral gene transfer

• genetic recombination

• natural selection

Any change in a sequence of DNA

• allele

• mutation

• gene

• allele frequency

During meiosis, chromosomes may exchange segments of DNA

• mutation

• lateral gene transfer

• genetic recombination

• genetic variation

Passing of genes from one organism to another organism that is not its offspring

• lateral gene transfer

• genetic recombination

• genetic variation

• mutation

Controlled by one gene.

• Single gene trait

• Polygenic trait

Controlled by two or more genes, and each gene usually has two or more alleles

• Single gene trait

• Polygenic trait