Genetics Vocabulary

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Trait

Back

Ways of looking, thinking, or being that are passed down through the genes from parents to offspring.

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Heredity

Back

The passing of traits from parent to offspring.

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Phenotype

Back

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

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Gene

Back

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

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Allele

Back

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

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Dominant Trait

Back

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

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Recessive Trait

Back

A trait that is only expressed when two recessive alleles are present.

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Genotype

Back

The genetic makeup of an organism, representing the alleles inherited from the parents.

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Punnett Square

Back

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

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Heterozygous Allele

Back

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