Punnett Squares

Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the genetic outcomes of a cross between two organisms, showing the possible combinations of alleles from the parents.

Front

What does 'G' represent in a Punnett Square for frogs?

Back

'G' represents green skin in frogs.

Front

What does 'g' represent in a Punnett Square for frogs?

Back

'g' represents brown skin in frogs.

Front

If both parents are homozygous dominant (GG), what is the chance of offspring having brown skin?

Back

0% chance of brown skin.

Front

What is a homozygous genotype?

Back

A homozygous genotype has two identical alleles for a trait, such as GG or gg.

Front

What is a heterozygous genotype?

Back

A heterozygous genotype has two different alleles for a trait, such as Gg.

Front

In a Punnett Square, how many boxes represent a 100% chance?

Back

4 boxes represent a 100% chance.

Front

If a Punnett Square shows 1 box is equal to 25%, how much is 2 boxes equal to?

Back

2 boxes are equal to 50%.

Front

What is the genotype of a frog with green skin if it is heterozygous?

Back

The genotype is Gg.

Front

What is the genotype of a frog with brown skin if it is homozygous recessive?

Back

The genotype is gg.