Punnett Square Practice

Front

An offspring will receive how many alleles from each parent to determine a specific trait?

Back

One allele from each parent.

Front

What is the possibility of an offspring having the dominant trait if one parent is homozygous dominant (AA) and the other is homozygous recessive (aa)?

Back

75% chance of having the dominant trait.

Front

What are the possible phenotype(s) of the offspring if one parent is heterozygous (Aa) and the other is homozygous recessive (aa)?

Back

50% Brown Hair and 50% Blond Hair.

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 purple if both parents are heterozygous (Pp)?

Back

75% chance of being purple.

Front

What is the probability of heterozygous offspring if one parent is homozygous dominant (AA) and the other is homozygous recessive (aa)?

Back

0% chance of heterozygous offspring.

Front

Define a Punnett Square.

Back

A Punnett Square is a diagram used to predict the outcome of a particular cross or breeding experiment.

Front

What does it mean for a trait to be dominant?

Back

A dominant trait is one that will appear in the phenotype even if only one allele is present.

Front

What does it mean for a trait to be recessive?

Back

A recessive trait is one that will only appear in the phenotype if two copies of the allele are present.

Front

If a plant has a genotype of Pp, what are the possible gametes it can produce?

Back

The possible gametes are P and p.

Front

What is the genotype of an organism that expresses a recessive trait?

Back

The genotype must be homozygous recessive (aa).