Question

if a red plant is crossed with a white plant and the offspring is pink, it is called _________.
a polygenic trait
b complex trait
c codominance
d incomplete dominance

Explanation:

• Polygenic trait: Refers to a trait controlled by multiple genes, not relevant here.
• Complex trait: A broad term, not specific to the described phenomenon.
• Codominance: Both alleles are fully expressed (e.g., roan cattle with red and white hairs).
• Incomplete dominance: The heterozygous phenotype is intermediate. Here, pink (intermediate) from red and white parents fits incomplete dominance.

Answer:

d. incomplete dominance