A scientist has discovered a strain of bacteria that can convert ethanol to pyruvate. When these bacteria are studied further, the scientist finds that they express two genes, C and D and that these genes are part of an operon (shown below) In studying these bacteria, you discover that the operon has two mutations (m1 and m2) that prevent gene expression. In order to study this operon further, you decide to concentrate on mutant strain 2. You introduce a wild-type operon into these mutant bacteria (i.e. an operon with fully functional regulatory and operon genes) to see if you can restore the operon's ability to make pyruvate. The following table summarizes your results Pry Y Prco Op D CD Cell Type No ethanol added Ethanol added Expression level of C & D Expression level of C & D Wild-type bacteria Low level High level Mutant strain 1 High level High level Mutant strain 2 High level High level Mutant strain 2 + Wild Low level High level type operon Using the information given above - match the statement with the correct term 1. the repressor of this operon is functional 2. the m1 mutation affects th v [ Select ] regulatory gene promoter sequence 3. the m2 mutation affects th coding sequence operator sequence
A scientist has discovered a strain of bacteria that can convert ethanol to pyruvate. When these bacteria are studied further, the scientist finds that they express two genes, C and D and that these genes are part of an operon (shown below) In studying these bacteria, you discover that the operon has two mutations (m1 and m2) that prevent gene expression. In order to study this operon further, you decide to concentrate on mutant strain 2. You introduce a wild-type operon into these mutant bacteria (i.e. an operon with fully functional regulatory and operon genes) to see if you can restore the operon's ability to make pyruvate. The following table summarizes your results Pry Y Prco Op D CD Cell Type No ethanol added Ethanol added Expression level of C & D Expression level of C & D Wild-type bacteria Low level High level Mutant strain 1 High level High level Mutant strain 2 High level High level Mutant strain 2 + Wild Low level High level type operon Using the information given above - match the statement with the correct term 1. the repressor of this operon is functional 2. the m1 mutation affects th v [ Select ] regulatory gene promoter sequence 3. the m2 mutation affects th coding sequence operator sequence
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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Transcribed Image Text:A scientist has discovered a strain of bacteria that can convert ethanol to pyruvate. When these bacteria are studied further,
the scientist finds that they express two genes, C and D and that these genes are part of an operon (shown below)
In studying these bacteria, you discover that the operon has two mutations (m1 and m2) that prevent gene expression. In
order to study this operon further, you decide to concentrate on mutant strain 2. You introduce a wild-type operon into
these mutant bacteria (i.e. an operon with fully functional regulatory and operon genes) to see if you can restore the operon's
ability to make pyruvate.
The following table summarizes your results
Pry
Y
Prco
Op
D
CD
Cell Type
No ethanol added
Ethanol added
Expression level of C & D
Expression level of C & D
Wild-type bacteria
Low level
High level
Mutant strain 1
High level
High level
Mutant strain 2
High level
High level
Mutant strain 2 + Wild
Low level
High level
type operon
![Using the information given above - match the statement with the correct term
1. the repressor of this operon is
functional
2. the m1 mutation affects th v [ Select ]
regulatory gene
promoter sequence
3. the m2 mutation affects th
coding sequence
operator sequence](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F42125ab7-540c-46d8-9598-1348aa93ea73%2F77bf6082-4fff-41ae-9846-8beacda23a74%2F0s6cazv_processed.png&w=3840&q=75)
Transcribed Image Text:Using the information given above - match the statement with the correct term
1. the repressor of this operon is
functional
2. the m1 mutation affects th v [ Select ]
regulatory gene
promoter sequence
3. the m2 mutation affects th
coding sequence
operator sequence
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