Punnett Squares - Complete, Incomplete, Codominance, Multiple

Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the genotype and phenotype combinations of a genetic cross.

Front

What does Incomplete Dominance mean?

Back

Incomplete Dominance occurs when one allele is not completely dominant over another, resulting in a blended phenotype in heterozygous offspring.

Front

What is Codominance?

Back

Codominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

Front

What is the difference between Homozygous and Heterozygous genotypes?

Back

Homozygous genotypes have two identical alleles for a trait, while Heterozygous genotypes have two different alleles.

Front

If a father has type A blood and a mother has type B blood, what are the possible genotypes for their child?

Back

The possible genotypes are IAIB, IAi, IBi, and ii.

Front

What is the genotype of a person with type O blood?

Back

The genotype of a person with type O blood is ii.

Front

What is the phenotype of a person with genotype IAIB?

Back

The phenotype of a person with genotype IAIB is type AB blood.

Front

If a woman with type B blood has a child with type O blood, what must her genotype be?

Back

The woman's genotype must be BO.

Front

What is the probability of two homozygous recessive parents producing a child with a dominant phenotype?

Back

The probability is 0%.

Front

What does it mean if a trait is dominant?

Back

A dominant trait is one that will express itself in the phenotype even if only one dominant allele is present.