Front

Punnett Square

Back

A special chart used to show possible gene combinations.

Front

Gene

Back

Segment of DNA found in chromosomes that give instructions for producing a certain characteristic.

Front

Recessive

Back

The trait represented by a lower case letter.

Front

Probability

Back

Chance or possibility that an event will take place.

Front

Incomplete Dominance

Back

The blending of two different alleles to create a third unique phenotype. Example: Snapdragon: red X white --> pink.

Front

Dominant

Back

The trait represented by an upper case letter that masks the effect of a recessive allele.

Front

Allele

Back

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

Front

Phenotype

Back

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

Front

Genotype

Back

The genetic constitution of an individual, often represented by letters (e.g., AA, Aa, aa).

Front

Codominance

Back

A genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive. Example: AB blood type.