Punnett Squares

Front

The scientific study of heredity is ____.

Back

Genetics

Front

What ratio of the offspring from the cross shown will be homozygous recessive for the trait of tallness?

Back

0 in 4

Front

Which of the following genotypes is heterozygous?

Back

Bb

Front

T = tall and t = short. TT and Tt would result in the following phenotype:

Back

tall

Front

Two brown-eyed parents (Bb) have a baby. What is the chance the baby is blue-eyed?

Back

25%

Front

What is a Punnett Square?

Back

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

Front

Define homozygous.

Back

Having two identical alleles for a particular gene.

Front

Define heterozygous.

Back

Having two different alleles for a particular gene.

Front

What does the term phenotype refer to?

Back

The observable physical or biochemical characteristics of an organism.

Front

What does the term genotype refer to?

Back

The genetic constitution of an individual.