Mutation in the operator that reduces the affinity of the operator for the repressor protein (operator-constitutive mutants = 0°)? Mutation in the promoter that reduces the affinity of the promoter for RN. polymerase (P)? Mutation in the repressor gene such that the protein has lost the ability to bind allolactose (superrepressor mutant = I³)? Mutation in the repressor gene such that the protein has lost the ability to bind the operator (I)? Gene Status normal Oc P IS I + lactose - lactose
Mutation in the operator that reduces the affinity of the operator for the repressor protein (operator-constitutive mutants = 0°)? Mutation in the promoter that reduces the affinity of the promoter for RN. polymerase (P)? Mutation in the repressor gene such that the protein has lost the ability to bind allolactose (superrepressor mutant = I³)? Mutation in the repressor gene such that the protein has lost the ability to bind the operator (I)? Gene Status normal Oc P IS I + lactose - lactose
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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Concept explainers
Proteins
We generally tend to think of proteins only from a dietary lens, as a component of what we eat. However, they are among the most important and abundant organic macromolecules in the human body, with diverse structures and functions. Every cell contains thousands and thousands of proteins, each with specific functions. Some help in the formation of cellular membrane or walls, some help the cell to move, others act as messages or signals and flow seamlessly from one cell to another, carrying information.
Protein Expression
The method by which living organisms synthesize proteins and further modify and regulate them is called protein expression. Protein expression plays a significant role in several types of research and is highly utilized in molecular biology, biochemistry, and protein research laboratories.
Question
Transcribed Image Text:Complete Table 1, indicating how much (lots, little, none) of the above gene product
would be made given the following mutations:
• Mutation in the operator that reduces the affinity of the operator for the repressor
protein (operator-constitutive mutants=0°)?
Mutation in the promoter that reduces the affinity of the promoter for RNA
polymerase (P)?
Mutation in the repressor gene such that the protein has lost the ability to bind
allolactose (superrepressor mutant = I³)?
Mutation in the repressor gene such that the protein has lost the ability to bind
the operator (I)?
Gene Status
normal
0°
P-
IS
I-
+ lactose
- lactose
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