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.

Tags

NGSS.HS-LS4-3

Front

What does it mean for a trait to be dominant?

Back

A dominant trait is one that will appear in the offspring if at least one parent contributes the dominant allele.

Front

What does it mean for a trait to be recessive?

Back

A recessive trait is one that will only appear in the offspring if both parents contribute the recessive allele.

Tags

NGSS.HS-LS3-1

Front

How are dominant alleles represented?

Back

Dominant alleles are represented by uppercase letters.

Front

How are recessive alleles represented?

Back

Recessive alleles are represented by lowercase letters.

Front

What is the genotype for a homozygous dominant individual?

Back

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

Front

What is the genotype for a homozygous recessive individual?

Back

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

Front

What is the genotype for a heterozygous individual?

Back

The genotype for a heterozygous individual is represented as 'Aa'.

Front

What is the probability of an offspring being homozygous dominant from a cross of two heterozygous parents (Aa x Aa)?

Back

The probability is 25%.

Tags

NGSS.HS-LS3-3

Front

What is the probability of an offspring being heterozygous from a cross of two heterozygous parents (Aa x Aa)?

Back

The probability is 50%.

Tags

NGSS.HS-LS3-3