Genetics Vocabulary

Front

What is a Punnett Square?

Back

A chart used to show all the ways genes from two parents can combine and be passed to offspring.

Front

What does probability mean in genetics?

Back

The likelihood or chance that a specific outcome will occur out of a total number of outcomes.

Front

What is heredity?

Back

The passing of genes from parents to offspring.

Front

What genotype would an individual with the recessive trait for red hair have?

Back

rr

Front

Which genotypes express the dominant trait?

Back

RR, Rr, and rR all express the dominant trait.

Front

What is a gene?

Back

A segment of DNA that contains the instructions for building a specific protein or trait.

Front

What is a dominant trait?

Back

A trait that is expressed when at least one dominant allele is present.

Front

What is a recessive trait?

Back

A trait that is only expressed when two recessive alleles are present.

Front

What is an allele?

Back

Different forms of a gene that can exist at a specific locus on a chromosome.

Front

What does genotype refer to?

Back

The genetic makeup of an individual, represented by the alleles they possess.