Many of the color varieties of summer squash are determined by several interacting loci: aa or aa gives white, aabb or aabb gives yellow, and aabb produces green. crosses among heterozygotes give a 12: 3: 1 ratio. what type of gene interaction would account for these results?

A. epistasis

Explanation:

Many of the color varieties of summer squash are determined by several interacting loci: AA or Aa gives white, aaBB or aaBb gives yellow, and aabb produces green. Crosses among heterozygotes give a 12:3:1 ratio. Epistasis is the type of gene interaction that would account for these results.

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