Introduction to Genetics Vocabulary

A specific characteristic that varies in individuals.

• Trait

• Gene

• Alleles

Tags

NGSS.HS-LS3-3

A sequence of DNA that codes for a trait.

• Gene

• Alleles

• Phenotype

• Genotype

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Different forms of a trait.

• Alleles

• Genes

• Heterozygous

• Phenotype

Tags

NGSS.HS-LS3-2

The trait that always shows up when present.

• Dominant

• Recessive

The trait that can be hidden.

• Dominant

• Recessive

Organisms with the same alleles for the trait.

• Homozygous

• Pure

• Heterozygous

• Hybrid

Organisms with different alleles for a trait.

• Hybrid

• Heterozygous

• Pure

• Homozygous

The genetic makeup of an organism.

• Genotype

• Phenotype

Tags

NGSS.HS-LS3-2

The physical appearance of an organism.

• Genotype

• Phenotype

Which of these is a homozygous dominant genotype?

• HH

• Hh

• hh