Question

which of the following is an example of incomplete dominance? (1 point)
a plant with red flowers and a plant with white flowers produce a plant with pink flowers.
crossing two short pea plants produces only short pea plants.
sons are more likely than daughters to inherit colorblindness.
a cow with red coat and a cow with white coat produce a cow with a red and white spotted coat.

Explanation:

Incomplete dominance is a form of intermediate inheritance where one allele for a specific trait is not completely expressed over its paired allele. This results in a third phenotype where the expressed physical trait is a combination of the phenotypes of both alleles. In the case of the plants, the red - flowered plant and white - flowered plant produce a pink - flowered plant. The pink color is an intermediate phenotype between red and white, which is characteristic of incomplete dominance.
For the pea plants, if crossing two short pea plants produces only short pea plants, this is likely a case of complete dominance (if short is the recessive trait and both parents are homozygous recessive) or a situation where there is no new phenotypic variation introduced, not incomplete dominance.
Sons being more likely than daughters to inherit colorblindness is related to X - linked inheritance (colorblindness is an X - linked recessive disorder), not incomplete dominance.
A cow with a red and white spotted coat from a red - coated and white - coated cow is an example of codominance, where both alleles are expressed simultaneously in the phenotype.

Answer:

A plant with red flowers and a plant with white flowers produce a plant with pink flowers.