Incomplete Dominance and Codominance

Front

What is incomplete dominance?

Back

A genetic situation where one allele does not completely dominate another allele, resulting in a blended phenotype in the offspring.

Front

What is codominance?

Back

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

Front

In incomplete dominance, what is the phenotype of the offspring when a red flowered plant (RR) is crossed with a white flowered plant (WW)?

Back

The offspring will have pink flowers (RW).

Front

What is the result of a cross between two plants with incomplete dominance?

Back

The offspring will show a blend of traits from both parents.

Front

If a red fish (RR) is crossed with a blue fish (BB) and the offspring are purple (RB), what type of inheritance is this?

Back

This is an example of incomplete dominance.

Front

In codominance, what happens when a red flowered plant (RR) is crossed with a white flowered plant (WW)?

Back

The offspring will have both red and white flowers (RW) showing both traits.

Front

What is the main difference between incomplete dominance and codominance?

Back

Incomplete dominance results in a blend of traits, while codominance results in both traits being fully expressed.

Front

What percentage of offspring will have pink flowers if a red flowered plant (RR) is crossed with a white flowered plant (WW) under incomplete dominance?

Back

100% of the offspring will have pink flowers (RW).

Front

What type of inheritance pattern is shown when a black chicken (BB) is crossed with a white chicken (WW) and the offspring are black and white speckled?

Back

This is an example of codominance.

Front

What is a phenotype?

Back

The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.