Punnett Squares and Heredity

Front

This trait is hidden whenever the dominant allele is present.

Back

Recessive allele

Front

An organism's physical appearance or visible traits. (what it looks like)

Back

Phenotype

Front

In pea plants, the tall allele is dominant to the short allele. What key would demonstrate this?

Back

Tall = T, Short = t

Front

An organism that has two different alleles for a trait (hybrid)

Back

Heterozygous

Front

What is the phenotype of the offspring? (A-Brown hair; a-blond hair)

Back

75 % Brown Hair and 25% Blond Hair

Front

The genetic makeup of an organism; the alleles it carries.

Back

Genotype

Front

A diagram used to predict the outcome of a genetic cross.

Back

Punnett Square

Front

When both alleles in a pair are the same, the organism is said to be...

Back

Homozygous

Front

The observable characteristics of an organism are determined by its...

Back

Genotype

Front

The physical expression of a trait, such as color or height, is known as...

Back

Phenotype