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 letter 'G' represent in genetics?

Back

In genetics, 'G' typically represents a dominant allele, while 'g' represents a recessive allele.

Front

What is the genotype for a yellow plant if G = green and g = yellow?

Back

gg

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Front

If a plant has the genotype Bb, what are the possible phenotypes?

Back

The possible phenotypes are determined by the dominant and recessive traits represented by the alleles.

Front

What is the probability of an offspring being purple if P is dominant over p?

Back

100% if both parents have at least one P allele.

Front

What does it mean if an allele is dominant?

Back

A dominant allele is one that expresses its trait even when only one copy is present in the genotype.

Front

What does it mean if an allele is recessive?

Back

A recessive allele only expresses its trait when two copies are present in the genotype.

Front

What is the purpose of using a Punnett Square?

Back

To visualize and calculate the probability of different genotypes and phenotypes in offspring.