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 'B' represent in genetics?

Back

'B' represents the dominant allele for brown fur.

Front

What does 'b' represent in genetics?

Back

'b' represents the recessive allele for white fur.

Front

What is the probability of getting white fur from a cross of Bb x Bb?

Back

50%.

Front

What do lowercase letters represent in genetics?

Back

Lowercase letters represent recessive alleles.

Front

What do uppercase letters represent in genetics?

Back

Uppercase letters represent dominant alleles.

Front

If a horse has a genotype of Bb, what color fur will it have?

Back

It will have brown fur because brown (B) is dominant over white (b).

Front

How many alleles do you inherit from each parent?

Back

You inherit 2 alleles, one from each parent.

Front

What is the genotype of a horse that has a chestnut coat color?

Back

The genotype must be 'bb' because chestnut is recessive.

Front

In a cross between BB and bb, what will the offspring's genotype be?

Back

All offspring will be Bb.