Monohybrid Punnett Square

Front

What is a Monohybrid Punnett Square?

Back

A tool used to predict the genotypes of offspring from a cross between two parents that differ in a single trait.

Front

What does 'homozygous' mean?

Back

An organism with two identical alleles for a particular trait (e.g., TT or tt).

Front

What does 'heterozygous' mean?

Back

An organism with two different alleles for a particular trait (e.g., Tt).

Front

What is the genotype for tall plants in this example?

Back

T (dominant allele for tallness).

Front

What is the genotype for short plants in this example?

Back

t (recessive allele for shortness).

Front

What is the phenotype of a plant with genotype TT?

Back

Tall.

Front

What is the phenotype of a plant with genotype tt?

Back

Short.

Front

What is the purpose of a Punnett Square?

Back

To visualize the possible genetic combinations from a genetic cross.

Front

If a plant is Tt, what are the possible gametes it can produce?

Back

T and t.

Front

What is the expected ratio of phenotypes in the offspring from a Tt x Tt cross?

Back

3 tall : 1 short.