Codominance vs incomplete dominance

Front

What is Incomplete Dominance?

Back

A genetic situation in which one allele does not completely dominate another allele, resulting in a new phenotype that is a blend of the two traits.

Front

What is Co-Dominance?

Back

A genetic situation where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that shows both traits simultaneously.

Front

What is the phenotype of a heterozygous individual in Incomplete Dominance?

Back

The phenotype is a blend of the dominant and recessive traits.

Front

If a straight hair allele (S) is dominant over curly hair allele (C), what is the phenotype of SC?

Back

Wavy hair, which is a blend of straight and curly.

Front

In a cross between two wavy-haired cats (SC), what is the expected percentage of wavy-haired offspring?

Back

50%.

Front

What is the expected phenotype ratio in a Punnett square for a cross between two heterozygous individuals (SC x SC)?

Back

1 Straight : 2 Wavy : 1 Curly.

Front

What is an example of Co-Dominance in animals?

Back

Calico cats, which exhibit both black and tan colors.

Front

In a cross between a black cat (BB) and a tan cat (TT), what is the expected phenotype of the offspring if the trait is Co-Dominant?

Back

All offspring will be black and tan (BT).

Front

What is the expected percentage of calico offspring from a cross between two heterozygous calico cats?

Back

50%.

Front

What is the phenotype of offspring from a cross between a homozygous black cat (BB) and a homozygous white cat (WW) if the trait is Co-Dominant?

Back

All offspring will be black and white (BW).