Punnett Squares

Front

Dominant alleles are represented by a _______.

Back

capital letter

Front

Which of the following is homozygous recessive? (Tt, tt, TT, T)

Back

tt

Front

In a certain species of plant, the color purple (P) is dominant to the color white (p). What is the probability of an offspring being white? (25%, 0%, 100%, 50%)

Back

0%

Front

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

Back

dominant

Front

Purebred is the same as _______ and hybrid is the same as ________.

Back

homozygous, heterozygous

Front

What is a Punnett Square used for?

Back

To predict the genotypes of offspring from parental genotypes.

Front

Define homozygous.

Back

An organism with two identical alleles for a trait.

Front

Define heterozygous.

Back

An organism with two different alleles for a trait.

Front

What does the term 'phenotype' refer to?

Back

The observable characteristics of an organism.

Front

What does the term 'genotype' refer to?

Back

The genetic makeup of an organism.