Punnett Squares 2

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 'homozygous' mean?

Back

Homozygous refers to having two identical alleles for a particular gene, such as AA or aa.

Front

What does 'heterozygous' mean?

Back

Heterozygous refers to having two different alleles for a particular gene, such as Aa.

Front

What is the probability of getting a white fur offspring if B = brown fur and b = white fur?

Back

50%.

Front

What is the genotype for homozygous dominant?

Back

AA.

Front

What is the genotype for heterozygous?

Back

Bb.

Front

In a Punnett Square, what does each box represent?

Back

Each box represents a possible genotype of the offspring from the genetic cross.

Front

What is the ratio of homozygous recessive offspring in a cross of Bb x Bb?

Back

1 in 4.

Front

What does the letter 'B' represent in genetics?

Back

'B' typically represents a dominant allele, such as brown fur.

Front

What does the letter 'b' represent in genetics?

Back

'b' typically represents a recessive allele, such as white fur.