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QUESTION 1 You are studying a mutant strain of e.coli. When you add lactose to the media of this bacteria the Beta-galactosidase expression is not observed. What could be a possible explanation for this? O a. None of these can explain your observations. O b. The active domain of Beta-galactosidase is mutated and unable to break down the lactose. O c. You added too much lactose to the media. O d.The site on the repressor protein where the inducer molecule binds is mutated preventing the inducer from binding there properly. O e. The DNA binding domain of the repressor protein is mutated preventing it from binding to the DNA.

QUESTION 1 You are studying a mutant strain of e.coli. When you add lactose to the media of this bacteria the Beta-galactosidase expression is not observed. What could be a possible explanation for this? O a. None of these can explain your observations. O b. The active domain of Beta-galactosidase is mutated and unable to break down the lactose. O c. You added too much lactose to the media. O d.The site on the repressor protein where the inducer molecule binds is mutated preventing the inducer from binding there properly. O e. The DNA binding domain of the repressor protein is mutated preventing it from binding to the DNA.

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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Question Completion Status: QUESTION 1 You are studying a mutant strain of e.coli. When you add lactose to the media of this bacteria the Beta-galactosidase expression is not observed. What could be a possible explanation for this? O a. None of these can explain your observations. O b. The active domain of Beta-galactosidase is mutated and unable to break down the lactose. O c. You added too much lactose to the media. O d.The site on the repressor protein where the inducer molecule binds is mutated preventing the inducer from binding there properly. O e. The DNA binding domain of the repressor protein is mutated preventing it from binding to the DNA. QUESTION 2 For a certain protein, one of the codons normally codes for a lysine. You found a mutant version of this protein, which has an arginine in place of the lysine. What type of mutation is this? O a. Transition O b. Transversion O c. Frameshift Od. Missense Oe. Nonsense Save All Answ Click Save and Submit to save and submit. Click Save All Answers to save all answers. tv 19 27 O O
Transcribed Image Text:Question Completion Status: QUESTION 1 You are studying a mutant strain of e.coli. When you add lactose to the media of this bacteria the Beta-galactosidase expression is not observed. What could be a possible explanation for this? O a. None of these can explain your observations. O b. The active domain of Beta-galactosidase is mutated and unable to break down the lactose. O c. You added too much lactose to the media. O d.The site on the repressor protein where the inducer molecule binds is mutated preventing the inducer from binding there properly. O e. The DNA binding domain of the repressor protein is mutated preventing it from binding to the DNA. QUESTION 2 For a certain protein, one of the codons normally codes for a lysine. You found a mutant version of this protein, which has an arginine in place of the lysine. What type of mutation is this? O a. Transition O b. Transversion O c. Frameshift Od. Missense Oe. Nonsense Save All Answ Click Save and Submit to save and submit. Click Save All Answers to save all answers. tv 19 27 O O
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