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 the term 'allele' mean?

Back

An allele is a variant form of a gene that can produce different traits.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable physical traits.

Front

What does it mean if an organism is homozygous?

Back

An organism is homozygous if it has two identical alleles for a particular gene.

Front

What does it mean if an organism is heterozygous?

Back

An organism is heterozygous if it has two different alleles for a particular gene.

Front

What is the dominant allele in pea plants for height?

Back

The dominant allele for height in pea plants is represented by 'T' (tall).

Front

What is the recessive allele in pea plants for height?

Back

The recessive allele for height in pea plants is represented by 't' (short).

Front

If a tall pea plant (Tt) is crossed with a short pea plant (tt), what are the possible genotypes of the offspring?

Back

The possible genotypes are Tt (tall) and tt (short).

Front

What is the probability of getting a tall plant from a Tt x tt cross?

Back

The probability of getting a tall plant is 50%.

Front

What is a phenotype ratio?

Back

A phenotype ratio is the ratio of different phenotypes in the offspring of a genetic cross.