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.

Q: Data set A summarizes F2 numbers from an F1 cross arising from two, true-breeding Drosophila strains…

A: a) Genetic hypothesis for each allele:Trait: Leg lengthHypothesis: Leg length is controlled by an…

Q: Based on the same data from the previous question:   cu  jv  se        31 +   +   se       99…

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Q: In Drosophila, M. Green found a singed allele (sn) withsome unusual characteristics. Females…

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Q: Illustrate the Parental and F1 cross

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Q: or gray body and its recessive allele for black body. At another gene locus, there is In the fruit…

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Q: If the blue F1 females in Figure  are backcrossed to the blue males in the P generation, what…

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Q: What is the genetic distance between the eye colour locus (w) and the bristle locus (sn)? answer in…

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Q: None

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Q: Phenotypically wild-type female Drosophila, whose mothers had spineless bristles (ss) and fathers…

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Q: Suppose a geneticist uses a three-point testcross to map three linked Drosophila recessive mutations…

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Q: In Drosophila, the gene eyeless (ey) is on the fourth chromosome, and four wings (fw) and legs for…

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