C. Consider the following hypothetical scheme of inheritance of coat color in an extinct mammal. Gene A controls the conversion of white pigment P, to gray pigment P1. The dominant allele A produces an enzyme necessary for this conversion but the recessive allele a produces an enzyme with no activity. b. Gene B controls the conversion of the gray pigment P1 to black pigment P2. The dominant B produces the active enzyme that catalyzes the reaction, and the recessive allele b produces a defective enzyme with no activity. c. The dominant allele C of a third gene produces a product that completely inhibits the activity of the enzyme produced gene A. Allele c produces defective product that does not inhibit the reaction. а. d. Genes A, B, and C assort independently, and no other genes are involved. 1. Draw the pathway described above. 2. Using branching method, what is the expected genotypic and phenotypic ratio if you cross: AabbCc x AAbbCc

C. Consider the following hypothetical scheme of inheritance of coat color in an extinct mammal. Gene A controls the conversion of white pigment P, to gray pigment P1. The dominant allele A produces an enzyme necessary for this conversion but the recessive allele a produces an enzyme with no activity. b. Gene B controls the conversion of the gray pigment P1 to black pigment P2. The dominant B produces the active enzyme that catalyzes the reaction, and the recessive allele b produces a defective enzyme with no activity. c. The dominant allele C of a third gene produces a product that completely inhibits the activity of the enzyme produced gene A. Allele c produces defective product that does not inhibit the reaction. а. d. Genes A, B, and C assort independently, and no other genes are involved. 1. Draw the pathway described above. 2. Using branching method, what is the expected genotypic and phenotypic ratio if you cross: AabbCc x AAbbCc

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter21: Microevolution: Genetic Changes Within Populations

Section: Chapter Questions

Problem 12TYK: Discuss Concepts Many human diseases are caused by recessive alleles that are not expressed in...

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