Genetics and Heredity Terminology

two different copies of an allele

• heterozygous

• homozygous

• genotype

• phenotype

an allele that masks the presence of another allele

• dominant

• recessive

• codominant

• incomplete dominance

two copies of the same allele

• heterozygous

• homozygous

• genotype

• phenotype

segment of DNA that determines a particular trait

• gene

• genotype

• chromosome

• double helix

the observable trait of an individual

• genotype

• phenotype

• gene

the study of how traits are passed on

• genetics

• heredity

• ecology

• biology

the genetic makeup of an individual

• genotype

• phenotype

• DNA

• gene

long rod-shaped bodies inside a cell's nucleus

• mitochondria

• chromosomes

• ribosomes

• proteins

an inherited characteristic of an organism

• trait

• gene

• chromosome

• phenotype

a gene for a particular trait; a form of a trait

• allele

• recessive

• dominant

• DNA