In Drosophila, gray body color is dominant over ebony body color,while long wings are dominant over vestigial wings. Work thefollowing crosses through the F2 generation, and determine thegenotypic and phenotypic ratios for each generation. Assumethat the P1 individuals are homozygous: (a) gray, long * ebony,vestigial, and (b) gray, vestigial * ebony, long, and (c) gray,long * gray, vestigial.

Human Anatomy & Physiology (11th Edition)
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Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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In Drosophila, gray body color is dominant over ebony body color,
while long wings are dominant over vestigial wings. Work the
following crosses through the F2 generation, and determine the
genotypic and phenotypic ratios for each generation. Assume
that the P1 individuals are homozygous: (a) gray, long * ebony,
vestigial, and (b) gray, vestigial * ebony, long, and (c) gray,
long * gray, vestigial.

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