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Microbiology: A Laboratory Manual, Loose Leaf Edition (12th Edition)
12th Edition
ISBN: 9780135188996
Author: James G. Cappuccino, Chad T. Welsh
Publisher: PEARSON
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Chapter 13, Problem 54E.4RQ
Summary Introduction
To explain: The significance of the Streptomycin marker in the parental E. coli strain.
Introduction: In prokaryotes, the gene transfer mechanism takes place through conjugation, transduction, and transformation. The spread of antibiotic resistance among most of the bacteria is chiefly caused by the conjugation mechanism. Antibiotic resistance has now become a major threat to humans.
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session.healthandnutrition-mastering.pearson.com/myct/itemView?assignment ProblemID=17396416&attemptNo=1&offset=prev
10. Your instructor will give you 2 amino acids during the activity session (video 2-7.
A. First color all the polar and non-polar covalent bonds in the R groups of your 2 amino acids
using the same colors as in #7. Do not color the bonds in the backbone of each amino acid.
B. Next, color where all the hydrogen bonds, hydrophobic interactions and ionic bonds could
occur in the R group of each amino acid. Use the same colors as in #7. Do not color the bonds
in the backbone of each amino acid.
C. Position the two amino acids on the page below in an orientation where the two R groups
could bond together. Once you are satisfied, staple or tape the amino acids in place and label
the bond that you formed between the two R groups.
- Polar covalent Bond - Red
- Non polar Covalent boND- yellow
- Ionic BonD - PINK
Hydrogen Bonn - Purple
Hydrophobic interaction-green
O=C-N
H
I.
H
HO
H
=O
CH2
C-C-N
HICK
H
HO
H
CH2
OH
H₂N
C = O
Find the dental formula and enter it in the following format:
I3/3 C1/1 P4/4 M2/3 = 42 (this is not the correct number, just the correct format)
Please be aware: the upper jaw is intact (all teeth are present). The bottom jaw/mandible is not intact. The front teeth should include 6 total rectangular teeth (3 on each side) and 2 total large triangular teeth (1 on each side).
Chapter 13 Solutions
Microbiology: A Laboratory Manual, Loose Leaf Edition (12th Edition)
Ch. 13 - Prob. 1QCCh. 13 - Prob. 2QCCh. 13 - Prob. 53E.1RQCh. 13 - Explain what is meant by an operon.
Ch. 13 - Explain the purpose of the ONPG in the procedure.
Ch. 13 - Compare and contrast the methods for DNA transfer...Ch. 13 - Prob. 53E.5RQCh. 13 - Explain how genetic variations may be introduced...Ch. 13 - Prob. 54E.2RQCh. 13 - Distinguish between F+ and Hfr bacterial strains.
Ch. 13 - Explain the importance of the streptomycin marker...Ch. 13 - What mechanisms are responsible for antibiotic...Ch. 13 - Why is it necessary to use an antibiotic...Ch. 13 - Why has there been an increase in drug-resistant...Ch. 13 - Does the streptomycin in the medium cause the...Ch. 13 - Prob. 56E.1RQCh. 13 - What is the purpose of the biotin–histidine...Ch. 13 - What is the relationship between chemical...Ch. 13 - What are the advantages of using bacterial systems...Ch. 13 - Why is plasmid DNA preferred for genetic...Ch. 13 - What are selectable markers, and why are they...Ch. 13 - Prob. 57E.3RQCh. 13 - Alcohol is considered to be a significant reagent...Ch. 13 - Prob. 57E.5RQCh. 13 - Prob. 57E.6RQCh. 13 - Prob. 57E.7RQCh. 13 - Prob. 58E.1RQCh. 13 - Prob. 58E.2RQCh. 13 - Prob. 58E.3RQCh. 13 - Prob. 58E.4RQCh. 13 - Prob. 58E.5RQCh. 13 - Prob. 58E.6RQCh. 13 - Prob. 58E.7RQ
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