The height of a type of bean plants is determined by five unlinked genes called A, B, C, D, and E. Each gene has two alleles: additive (uppercase letter) and nonadditive (lowercase letter). The shortest plans are 130cm. The tallest plants are 220 cm. Estimate how many cm each allele contributes to the height difference. Help me with this pls.
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9cm. Since the uppercase alleles are additive, the tallest plants have the genotype AABBCCDDEE, and they are 90cm taller than the shortest plants, aabbccddee. That is, 10 "tall" alleles added 90cm; 90/10 = 9.