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You are studying two linked genes, A/a and B/b, in cats. The a allele produces brown fur and is recessive to the allele for white fur (A). The recessive ballele causes cats to have pink toe pads whereas the dominant Ballele results in black toe pads. You have a female that is heterozygous for both genes. You mate the female with a male in a testcross and get the following progeny with these phenotypes: White cats with black toe pads 7 Brown cats with pink toe pads 6 White cats with pink toe pads 34 Brown cats with black toe pads 33 Part A. Based on the results above, are the alleles in the female parent in coupling or repulsion configuration? Explain your answer. Give the genotype of the female parent using notation that shows gene linkage. Part B. Which are the recombinant phenotypes and which are the nonrecombinant phenotypes among the offspring? Part C. What is the genetic distance between the two gene loci in cM or map units?

You are studying two linked genes, A/a and B/b, in cats. The a allele produces brown fur and is recessive to the allele for white fur (A). The recessive ballele causes cats to have pink toe pads whereas the dominant Ballele results in black toe pads. You have a female that is heterozygous for both genes. You mate the female with a male in a testcross and get the following progeny with these phenotypes: White cats with black toe pads 7 Brown cats with pink toe pads 6 White cats with pink toe pads 34 Brown cats with black toe pads 33 Part A. Based on the results above, are the alleles in the female parent in coupling or repulsion configuration? Explain your answer. Give the genotype of the female parent using notation that shows gene linkage. Part B. Which are the recombinant phenotypes and which are the nonrecombinant phenotypes among the offspring? Part C. What is the genetic distance between the two gene loci in cM or map units?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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You are studying two linked genes, A/a and B/b, in cats. The a allele produces brown fur and is recessive to the allele for white fur (A). The recessiveb allele causes cats to have pink toe pads whereas the dominant B allele results in black toe pads. You have a female that is heterozygous for both genes. You mate the female with a male in a testcross and get the following progeny with these phenotypes: White cats with black toe pads 7 Brown cats with pink toe pads 6 White cats with pink toe pads 34 Brown cats with black toe pads 33 Part A. Based on the results above, are the alleles in the female parent in coupling or repulsion configuration? Explain your answer. Give the genotype of the female parent using notation that shows gene linkage. Part B. Which are the recombinant phenotypes and which are the nonrecombinant phenotypes among the offspring? Part C. What is the genetic distance between the two gene loci in cM or map units?
Transcribed Image Text:You are studying two linked genes, A/a and B/b, in cats. The a allele produces brown fur and is recessive to the allele for white fur (A). The recessiveb allele causes cats to have pink toe pads whereas the dominant B allele results in black toe pads. You have a female that is heterozygous for both genes. You mate the female with a male in a testcross and get the following progeny with these phenotypes: White cats with black toe pads 7 Brown cats with pink toe pads 6 White cats with pink toe pads 34 Brown cats with black toe pads 33 Part A. Based on the results above, are the alleles in the female parent in coupling or repulsion configuration? Explain your answer. Give the genotype of the female parent using notation that shows gene linkage. Part B. Which are the recombinant phenotypes and which are the nonrecombinant phenotypes among the offspring? Part C. What is the genetic distance between the two gene loci in cM or map units?
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