Genetics: Punnett Squares

Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the genetic makeup of offspring from two parents based on their alleles.

Front

What does 'homozygous dominant' mean?

Back

Homozygous dominant refers to having two identical dominant alleles for a trait, represented as 'AA'.

Front

What does 'homozygous recessive' mean?

Back

Homozygous recessive refers to having two identical recessive alleles for a trait, represented as 'aa'.

Front

What does 'heterozygous' mean?

Back

Heterozygous refers to having one dominant and one recessive allele for a trait, represented as 'Aa'.

Front

What is the probability of offspring being homozygous if both parents are heterozygous?

Back

The probability is 50%.

Front

What is the probability of offspring showing a recessive trait if both parents are heterozygous?

Back

The probability is 25%.

Front

What is the genotype for homozygous dominant?

Back

The genotype for homozygous dominant is represented as 'AA'.

Front

What is the genotype for homozygous recessive?

Back

The genotype for homozygous recessive is represented as 'aa'.

Front

What is the genotype for heterozygous?

Back

The genotype for heterozygous is represented as 'Aa'.

Front

If a Punnett Square shows 4 squares, what does that represent?

Back

It represents the possible combinations of alleles from the parents.