Punnet Squares

Front

What is a Punnet Square?

Back

A Punnet Square is a diagram used to predict the genotypes and phenotypes of offspring from two parents.

Front

What does the dominant trait mean?

Back

The dominant trait is the characteristic that is expressed in the offspring when at least one dominant allele is present.

Front

What color are the dominant pea seeds?

Back

Yellow pea seeds are the dominant trait.

Front

What is the purpose of a Punnet Square?

Back

A Punnet Square predicts the genotypes and phenotypes in offspring.

Front

If both parents are heterozygous for a trait, what is the chance of having a recessive trait?

Back

There is a 25% chance of having a recessive trait.

Front

What does heterozygous mean?

Back

Heterozygous means having two different alleles for a specific gene.

Front

What does homozygous mean?

Back

Homozygous means having two identical alleles for a specific gene.

Front

If black hair is dominant over blonde hair, what is the chance of having blonde hair from two heterozygous parents?

Back

There is a 25% chance of having blonde hair.

Front

How many boxes in a Punnet Square represent the genotype BB if both parents are Bb?

Back

0 boxes represent the genotype BB.

Front

What is the probability of offspring being terminal if axial flowers are dominant?

Back

The probability of offspring being terminal is 1/4.