Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 9.1, Problem 2TQ
Summary Introduction
To review:
The reason for the transfer of Hfr into a cell does not convert the recipient cell to F+, unlike the F factor.
Introduction:
Fertility factor (F factor) is transferred from one bacteria to another. This factor is present in Escherichia coli. The bacteria consisting of this factor are represented by F+ while the one that needs it is the recipient and is denoted as F-. The F plasmid is a giant plasmid that possesses various genes that ease the process of DNA (Deoxyribonucleic acid) transfer between two cells.
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Which person type O, A, B, or AB is considered a universal donor, and which is a universal recipient? Explain your answer?
In Figure 5-12,a. Which Hfr gene enters the recipient last? (Whichdiagram shows it actually entering?)b. What is the maximum percentage of cases of transferof this gene?c. Which genes have entered at 25 minutes? Couldthey all become part of a stable exconjugant genome?
Conjugation between an Hfr cell and F- cell does not usually result in conversion of exconjugants to the donor state. Occasionally however, the result of this conjugation is two Hfr cells. Explain how this occurs.
Chapter 9 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 9.1 - Prob. 1TQCh. 9.1 - Prob. 2TQCh. 9.1 - Prob. 3TQCh. 9.1 - Prob. 4TQCh. 9.2 - Prob. 1TQCh. 9.3 - Prob. 1TQCh. 9.4 - Prob. 1TQCh. 9.4 - Prob. 2TQCh. 9.5 - Prob. 1TQCh. 9.6 - Prob. 1TQ
Ch. 9 - Prob. 1RQCh. 9 - Prob. 2RQCh. 9 - Prob. 3RQCh. 9 - Prob. 4RQCh. 9 - Prob. 5RQCh. 9 - Prob. 6RQCh. 9 - Prob. 7RQCh. 9 - Prob. 8RQCh. 9 - Prob. 9RQCh. 9 - Prob. 10RQCh. 9 - Prob. 11RQCh. 9 - Prob. 12RQCh. 9 - Prob. 13RQCh. 9 - Prob. 14RQCh. 9 - Prob. 15RQCh. 9 - Prob. 16RQCh. 9 - Prob. 1TQCh. 9 - Prob. 2TQCh. 9 - Prob. 3TQCh. 9 - Prob. 4TQCh. 9 - Prob. 5TQCh. 9 - Prob. 6TQ
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