3) What genotypes and phenotypes do you expect as a result of the yellow body, medium bristled Xyellow body, medium bristled cross, and in what frequencies will they occur? Show your work andinclude only the live offspring in these results. The Yallele in Drosophila is a dominant for yellow body color and the y allele is recessive for brown bodycolor. The Y allele is also a recessive lethal allele. At a second locus, the allele B for long bristles isincompletely dominant to the allele b for short bristles. Follow the steps below to predict the genotypesand phenotypes of the LIVE progeny from the following cross:yellow body, medium bristled X yellow body, medium bristled.1) What is the cross?2) Break this down to the single gene level by answering the following questions:a. What is the ratio of yellow to brown offspring? Show the Punnett square, but include onlythe live offspring in the final ratios, and place a box around this final ratio:b. What is the ratio of bristle lengths? Show the Punnett square:

Yellow body = Yy Lethal = YY Brown body = yy Long bristles = BB Medium bristles = Bb Short bristles…

3) What genotypes and phenotypes do you expect as a result of the yellow body, medium bristled X yellow body, medium bristled cross, and in what frequencies will they occur? Show your work and include only the live offspring in these results.

3) What genotypes and phenotypes do you expect as a result of the yellow body, medium bristled X yellow body, medium bristled cross, and in what frequencies will they occur? Show your work and include only the live offspring in these results.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter11: The Basic Principles Of Heredity

Section: Chapter Questions

Problem 11TYU: Individuals of genotype AaBb were mated to individuals of genotype aabb. One thousand offspring were...

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Question

3) What genotypes and phenotypes do you expect as a result of the yellow body, medium bristled X
yellow body, medium bristled cross, and in what frequencies will they occur? Show your work and
include only the live offspring in these results.

The Yallele in Drosophila is a dominant for yellow body color and the y allele is recessive for brown body
color. The Y allele is also a recessive lethal allele. At a second locus, the allele B for long bristles is
incompletely dominant to the allele b for short bristles. Follow the steps below to predict the genotypes
and phenotypes of the LIVE progeny from the following cross:
yellow body, medium bristled X yellow body, medium bristled.
1) What is the cross?
2) Break this down to the single gene level by answering the following questions:
a. What is the ratio of yellow to brown offspring? Show the Punnett square, but include only
the live offspring in the final ratios, and place a box around this final ratio:
b. What is the ratio of bristle lengths? Show the Punnett square:

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