Homework Help is Here – Start Your Trial Now!
Science
Biology
In E. coli, three structural genes (A, D, and E) encode enzymes A, D, and E, respectively. Sequence O is an operator. The sequences are in the order O- A- D- E on the chromosome. The three enzymes encoded by A, D, and E catalyze the biosynthesis of valine. Mutations at the A, D, E, and O were isolated to study the production of enzymes A, D, and E when cellular levels of valine were low (T. Ramakrishnan and E. A. Adelberg. 1965. Journal of Bacteriology 89:654-660). Amounts of the enzymes produced by partial-diploid E. coli with various combinations of mutations are shown in the following table. Amount of enz produced Genotype E D E* D* A* O*/E* D* 1. 2,40 2.00 A* O* E* D* A* O"/E* D* 2. 35.80 38.60 A* O* E* D A* O I 3. E* D* A" O* 1.80 1.00 E* D* A O / 4. 35.30 38.00 E* D A* O* E D* A* O / 5. 2.38 38.00 E* D A* O*

In E. coli, three structural genes (A, D, and E) encode enzymes A, D, and E, respectively. Sequence O is an operator. The sequences are in the order O- A- D- E on the chromosome. The three enzymes encoded by A, D, and E catalyze the biosynthesis of valine. Mutations at the A, D, E, and O were isolated to study the production of enzymes A, D, and E when cellular levels of valine were low (T. Ramakrishnan and E. A. Adelberg. 1965. Journal of Bacteriology 89:654-660). Amounts of the enzymes produced by partial-diploid E. coli with various combinations of mutations are shown in the following table. Amount of enz produced Genotype E D E* D* A* O*/E* D* 1. 2,40 2.00 A* O* E* D* A* O"/E* D* 2. 35.80 38.60 A* O* E* D A* O I 3. E* D* A" O* 1.80 1.00 E* D* A O / 4. 35.30 38.00 E* D A* O* E D* A* O / 5. 2.38 38.00 E* D A* O*

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,...
See similar textbooks
icon
Related questions
Question

Are genes A, D, and E all under the control of operator O? Explain your reasoning

In E. coli, three structural genes (A, D, and E) encode enzymes A, D, and E, respectively. Sequence O is an operator. The sequences are in the order O- A- D- E on the chromosome. The three enzymes encoded by A, D, and E catalyze the biosynthesis of valine. Mutations at the A, D, E, and O were isolated to study the production of enzymes A, D, and E when cellular levels of valine were low (T. Ramakrishnan and E. A. Adelberg. 1965. Journal of Bacteriology 89:654-660). Amounts of the enzymes produced by partial-diploid E. coli with various combinations of mutations are shown in the following table. Amount of enz produced Genotype E D E* D* A* O*/E* D* 1. 2,40 2.00 A* O* E* D* A* O"/E* D* 2. 35.80 38.60 A* O* E* D A* O I 3. E* D* A" O* 1.80 1.00 E* D* A O / 4. 35.30 38.00 E* D A* O* E D* A* O / 5. 2.38 38.00 E* D A* O*
Transcribed Image Text:In E. coli, three structural genes (A, D, and E) encode enzymes A, D, and E, respectively. Sequence O is an operator. The sequences are in the order O- A- D- E on the chromosome. The three enzymes encoded by A, D, and E catalyze the biosynthesis of valine. Mutations at the A, D, E, and O were isolated to study the production of enzymes A, D, and E when cellular levels of valine were low (T. Ramakrishnan and E. A. Adelberg. 1965. Journal of Bacteriology 89:654-660). Amounts of the enzymes produced by partial-diploid E. coli with various combinations of mutations are shown in the following table. Amount of enz produced Genotype E D E* D* A* O*/E* D* 1. 2,40 2.00 A* O* E* D* A* O"/E* D* 2. 35.80 38.60 A* O* E* D A* O I 3. E* D* A" O* 1.80 1.00 E* D* A O / 4. 35.30 38.00 E* D A* O* E D* A* O / 5. 2.38 38.00 E* D A* O*
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Genome annotation
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education
SEE MORE TEXTBOOKS