Punnett Square Practice

Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.

Front

What does the term 'phenotype' mean?

Back

Phenotype refers to the observable physical characteristics of an organism, determined by its genotype and environment.

Front

What is the genotype for a plant with yellow color if G = green and g = yellow?

Back

The genotype for a yellow plant is gg.

Front

If the tall allele is dominant to the short allele, how is this represented in symbols?

Back

Tall = T, Short = t.

Front

What is the probability of an offspring being purple if purple (P) is dominant to white (p)?

Back

The probability of an offspring being purple is 100% if at least one parent has the purple allele.

Front

What does 'dominant allele' mean?

Back

A dominant allele is an allele that expresses its trait even when only one copy is present in the genotype.

Front

What does 'recessive allele' mean?

Back

A recessive allele is an allele that only expresses its trait when two copies are present in the genotype.

Front

In a genetic cross, what does a capital letter represent?

Back

A capital letter represents a dominant allele.

Front

In a genetic cross, what does a lowercase letter represent?

Back

A lowercase letter represents a recessive allele.

Front

What is the expected phenotype ratio from a monohybrid cross of two heterozygous parents (Tt x Tt)?

Back

The expected phenotype ratio is 3:1 (3 tall: 1 short).