When certain medium height hybrid plants were crossed, they produced offspring that were dwarf, medium, and tall in a ratio of 1 : 2 : 1.This is an example of:
A) variegation.
B) hybrid vigor.
C) incomplete dominance.
D) epistasis.
E) a polygenic trait.

Question

Quizplus · Accepted Answer

This is an example of incomplete dominance, where the heterozygous phenotype (medium height) is intermediate between the two homozygous phenotypes (dwarf and tall), resulting in a 1:2:1 phenotypic ratio in the offspring.

When Certain Medium Height Hybrid Plants Were Crossed, They Produced