Genetics Vocabulary

Front

Homozygous/Purebred

Back

Having two identical alleles of a particular gene or genes.

Front

Recessive

Back

A trait that is masked by the dominant trait and only appears if two recessive alleles for the same characteristic are inherited.

Front

Genes

Back

DNA segments found on chromosomes that determine the inheritance of a particular trait.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

Chromosome

Back

A structure found in the nucleus of the cell that contains genetic information (DNA).

Tags

NGSS.HS-LS3-1

Front

Genotype

Back

The genetic makeup of an organism.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

Dominant

Back

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

Front

Allele

Back

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

Tags

NGSS.HS-LS3-2

Front

Phenotype

Back

The observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Tags

NGSS.HS-LS3-1

Front

Hybrid

Back

An organism that has two different alleles for a particular trait.

Front

Trait

Back

A specific characteristic of an organism, which can be influenced by genes and the environment.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2