In a study, an undergraduate student discovered a new enzyme involved in the metabolism of serotonin. This enzyme is made up of 3 subunits of the same protein. To characterize this enzyme, the student used genetic approaches to induce mutations in the coding region of the gene that codes for this protein and performed crosses to measure the effects of genotypes on enzyme activity.

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
Chapter15: From Dna To Protein
Section15.1: The Connection Between Dna, Rna, And Protein
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In a study, an undergraduate student discovered a new enzyme involved in the metabolism of
serotonin. This enzyme is made up of 3 subunits of the same protein. To characterize this
enzyme, the student used genetic approaches to induce mutations in the coding region of the
gene that codes for this protein and performed crosses to measure the effects of genotypes on
enzyme activity.
A) Indicate directly in the diagram (via a bar graph) the predicted relationship between
genotype and enzyme activity. (Al represents the wild-type allele, A2 represents the
mutant allele).
A2A2
A1A2
A1Α1
B) Explain the reasoning for your prediction.
Enzyme Activity
Transcribed Image Text:In a study, an undergraduate student discovered a new enzyme involved in the metabolism of serotonin. This enzyme is made up of 3 subunits of the same protein. To characterize this enzyme, the student used genetic approaches to induce mutations in the coding region of the gene that codes for this protein and performed crosses to measure the effects of genotypes on enzyme activity. A) Indicate directly in the diagram (via a bar graph) the predicted relationship between genotype and enzyme activity. (Al represents the wild-type allele, A2 represents the mutant allele). A2A2 A1A2 A1Α1 B) Explain the reasoning for your prediction. Enzyme Activity
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