College Biology Quiz
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INHERITANCE & GENETICS
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In a study of flower color, researchers find that plants with genotype RR produce red flowers when grown in soil with pH 6.0, but pink flowers when grown in soil with pH 8.0. Plants with genotype rr produce white flowers regardless of soil pH. Plants with genotype Rr produce red flowers at pH 6.0 and white flowers at pH 8.0. What does this pattern suggest about the R allele?
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