In some plants a red pigment is synthesized from a colorless precursor by a single enzyme...

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Biology

In some plants a red pigment is synthesized from a colorlessprecursor by a single enzyme coded for by gene A. The red pigmentcan be changed into a purple pigment by another enzyme coded for bygene B. A cross between pure-breeding purple plants and whiteplants with the resulting F₂:
94 purple
31 red
43 white
A. Give a concise genetic hypothesis for inheritance of flowercolor from these results (include number of genes, number ofalleles, and the relations between genes and alleles).
B. Using symbols A and B to correspond to genes A and B asdescribed above symbolize the genotypes and their ratios for eachF₂ phenotypic class.
C. If the F₁ is used in a testcross, what phenotypicratio would you expect in the progeny?

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4.5 Ratings (813 Votes)

The inheritance pattern is described about the recessive epistasis A Gene A consists of two alleles Adominant a recessive Gene B consists of two See Answer

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