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 letter 'P' represent in genetics?

Back

The letter 'P' represents a dominant allele, which can mask the effect of a recessive allele.

Front

What is the probability of an offspring being purple if both parents are heterozygous (Pp)?

Back

75% chance of being purple (PP or Pp) and 25% chance of being white (pp).

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 characteristics of an organism, determined by its genotype.

Front

What is a trait?

Back

A trait is a characteristic that an organism can pass on to its offspring through its genes.

Front

What does homozygous mean?

Back

Homozygous means having two identical alleles for a trait, such as TT or tt.

Front

What does heterozygous mean?

Back

Heterozygous means having two different alleles for a trait, such as Tt.

Front

What is a recessive allele?

Back

A recessive allele is an allele that is masked by a dominant allele and is only expressed when two recessive alleles are present.

Front

What is a dominant allele?

Back

A dominant allele is an allele that can mask the effect of a recessive allele and is expressed in the phenotype.