Question

____ occurs when 50% of a protein produces a different phenotype than that produced by 100% or 0% of the protein.

A. Codominance
B. Incomplete dominance
C. Epistasis
D. Polygenic inheritance

Answer 1

Incomplete dominance is the correct answer as it describes a situation where heterozygous individuals express an intermediate phenotype between two homozygous phenotypes, such as pink flowers from red and white parents.

Step-by-step explanation:

Incomplete dominance occurs when 50% of a protein produces a different phenotype than that produced by 100% or 0% of the protein. This genetic phenomenon is where the phenotype of the heterozygote is intermediate between those of the two homozygotes.

For instance, if a plant with red flowers is crossed with a plant with white flowers, and the offspring have pink flowers, this is an example of incomplete dominance. In this case, neither red nor white is completely dominant, so the heterozygous offspring display a blended phenotype.