In butterflies red wing color R is dominant to yellow wing color r and long...

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In butterflies red wing color R is dominant to yellow wing color r and long antennae A are dominant to short antennae a A researcher crosses a true breeding butterfly with red wings and long antennae and a true breeding butterfly with yellow wings and short anten nae The researcher finds that all of the offspring contain red wings and long antennae The farmer then crosses two F1 butterflies which produce an F2 generation with approximately nine times as many offspring with red wings and long antennae as butterflies with yellow wings and short antennae Which of the following best explains these results A B C Alleles that are on nonhomologous chromosomes recombine The allele pairs of each parent stay together resulting in identical gametes to the parents Gene segments on sister chromatids cross over increasing genetic variation

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