Punnett Square

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 'genotype' refer to?

Back

Genotype refers to the genetic makeup of an organism, specifically the alleles it possesses for a particular trait.

Front

What does the term 'phenotype' refer to?

Back

Phenotype refers to the physical appearance or observable characteristics of an organism, resulting from the interaction of its genotype with the environment.

Front

What is the difference between homozygous and heterozygous genotypes?

Back

Homozygous genotypes have two identical alleles for a trait (e.g., AA or aa), while heterozygous genotypes have two different alleles (e.g., Aa).

Front

In a Punnett Square, where are the parents' genotypes placed?

Back

The parents' genotypes are placed on the top and side of the Punnett Square.

Front

What is the probability of producing a rabbit with brown coat color from two heterozygous black rabbits (Bb)?

Back

The probability is 25%.

Front

If a plant has a genotype of Aa, what are the possible gametes it can produce?

Back

The possible gametes are A and a.

Front

What is the expected phenotypic ratio of a monohybrid cross between two heterozygous parents (Aa x Aa)?

Back

The expected phenotypic ratio is 3:1.

Front

What does 'dominant' mean in genetics?

Back

Dominant refers to an allele that expresses its trait even when only one copy is present in the genotype.

Front

What does 'recessive' mean in genetics?

Back

Recessive refers to an allele that only expresses its trait when two copies are present in the genotype.