In a Plant, a Single Locus Affects Both Berry Color

In a plant, a single locus affects both berry color and berry size.There are two mutant alleles (R₁ and R₂) in addition to the wild-type allele (R₀) .Individuals that are R₀R₀ have large, white berries.Individuals that are R₁R₁ or R₀R₁ have red berries, individuals that are R₂R₂ or R₀R₂ have small berries, and R₁R₂ individuals have berries that are both red and small.Thus,

A) R₁ is dominant to R₂.
B) R₂ is dominant to R₁.
C) R₁ and R₂ exhibit incomplete dominance.
D) R₁ and R₂ exhibit pleiotropy.
E) R₁ and R₂ exhibit codominance.

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