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2. Genetics enables us to understand how proteins interact with one another within the context of a living organism. Different types of mutations can give phenotypes that indicate these protein interactions. a) Why does a dominant negative phenotype indicate a protein may be acting as a homomultimer? b) Does a hypermorphic mutation also indicate this? Why or why not? c) If you have two mutant proteins that show a pseudo-reversion phonotype (second site suppressor) there is a strong possibility that the two proteins interact. Explain in your own words why a mutation in one protein can rescue (at least partially) the phenotype caused by a mutation in a completely different protein.

2. Genetics enables us to understand how proteins interact with one another within the context of a living organism. Different types of mutations can give phenotypes that indicate these protein interactions. a) Why does a dominant negative phenotype indicate a protein may be acting as a homomultimer? b) Does a hypermorphic mutation also indicate this? Why or why not? c) If you have two mutant proteins that show a pseudo-reversion phonotype (second site suppressor) there is a strong possibility that the two proteins interact. Explain in your own words why a mutation in one protein can rescue (at least partially) the phenotype caused by a mutation in a completely different protein.

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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2. Genetics enables us to understand how proteins interact with one another within the context of a living organism. Different types of mutations can give phenotypes that indicate these protein interactions. a) Why does a dominant negative phenotype indicate a protein may be acting as a homomultimer? b) Does a hypermorphic mutation also indicate this? Why or why not? c) If you have two mutant proteins that show a pseudo-reversion phonotype (second site suppressor) there is a strong possibility that the two proteins interact. Explain in your own words why a mutation in one protein can rescue (at least partially) the phenotype caused by a mutation in a completely different protein. d) Why are second site suppressor mutations allele specific?
Transcribed Image Text:2. Genetics enables us to understand how proteins interact with one another within the context of a living organism. Different types of mutations can give phenotypes that indicate these protein interactions. a) Why does a dominant negative phenotype indicate a protein may be acting as a homomultimer? b) Does a hypermorphic mutation also indicate this? Why or why not? c) If you have two mutant proteins that show a pseudo-reversion phonotype (second site suppressor) there is a strong possibility that the two proteins interact. Explain in your own words why a mutation in one protein can rescue (at least partially) the phenotype caused by a mutation in a completely different protein. d) Why are second site suppressor mutations allele specific?
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