Genetics Vocabulary

Front

An allele that is always expressed when it is present. They are usually represented by capital letters.

Back

Dominant allele

Front

A diagram that shows the possible offspring of two parents.

Back

Punnett square

Front

Having two alleles that are the same.

Back

Homozygous

Front

An allele that is not expressed when the dominant allele is present. They are represented by a lowercase letter.

Back

Recessive allele

Front

A molecule found in the cell nucleus that encodes genetic information, it is called deoxyribonucleic acid.

Back

DNA

Front

One of two or more forms that a gene could take.

Back

allele

Front

A characteristic of an organism, they can be skin color, eye color, hair, allergies, and many others.

Back

trait

Front

Having two alleles that are different.

Back

Heterozygous

Front

A segment of DNA that determines or helps to determine a trait.

Back

gene

Front

A version of a gene that can be dominant or recessive.

Back

Allele