Genetics Vocabulary

The material that controls which traits are expressed in an organism.

• Gene

• Allele

• Trait

• Genotype

The passing of traits from parent to offspring.

• Heredity

• Allele

• Trait

• Phenotype

Outward physical appearance and behavior of an organism.

• Genotype

• Phenotype

• Punnett Square

• Genetics

A trait that covers over another form of that trait.

• Dominant Trait

• Recessive Trait

• Allele

• Gene

An organism that has one dominant allele and one recessive allele.

• Heterozygous

• Homozygous

• Gene

• Trait

An organism that has both aleles in the same form: dominant or recessive

• Homozygous

• Heterozygous

• Heredity

• Allele

An organism's genetic make up. Usually expressed in letters.

• Genotype

• Phenotype

• Dominate Trait

• Recessive Trait

The study of how traits are inherited through the interactions of genes.

• Genetics

• Heredity

• Trait

• Allele

A tool to predict the probability of certain traits that could be found in the offspring.

• Punnett Square

• Recessive Trait

• Allele

• Heterozygous Allele

A trait that is covered over by another form of that trait.

• Recessive Trait

• Dominant Trait

• Allele

• Gene