Biology: Life on Earth
10th Edition
ISBN: 9780321729712
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: Benjamin Cummings
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Textbook Question
Chapter 19, Problem 5RQ
What is conjugation? What role do plasmids play in conjugation?
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A plasmid may
A) replicate independently of the chromosome.
B) be transferred cell-to-cell during conjugation.
C) be integrated into the chromosome.
D) replicate independently of the chromosome, integrate into the chromosome, or be transferred cell-to-cell during conjugation.
What is the function of the capsule?
What is the fimbrae and its function?
What does the plasmid contain the code for?
What is the function of pili?
How
do
bacteria
reproduce?
Which of the statements is TRUE about conjugation?
a)
Plasmid DNA is transferred from a donor (F+) cell
b)
It may only be performed by competent cells
c)
DNA is always integrated into recipient chromosome
d)
It may be specialized or generalized
Chapter 19 Solutions
Biology: Life on Earth
Ch. 19 - _______have peptidoglycan in their _____, but____...Ch. 19 - Fill-in-the-Blank The size of prokaryotic cells...Ch. 19 - 3. Many prokaryotes use _____ to move about. Some...Ch. 19 - _____ bacteria inhabit environments that lack...Ch. 19 - 5. Prokaryotes reproduce by _____and may sometimes...Ch. 19 - 6. The plant nutrient ammonium is produced by___...Ch. 19 - Fill-in-the-Blank Diseases caused by pathogenic...Ch. 19 - A virus consists of a molecule of ____or _____...Ch. 19 - Describe some of the ways in which prokaryotes...Ch. 19 - What are nitrogen-fixing bacteria, and what role...
Ch. 19 - Describe some of the extreme environments in which...Ch. 19 - Prob. 4RQCh. 19 - What is conjugation? What role do plasmids play in...Ch. 19 - 6. Why are prokaryotes especially useful in...Ch. 19 - Describe the structure of a typical virus. How do...Ch. 19 - Describe some examples of how prokaryotes are...Ch. 19 - How do archaea and bacteria differ? How do...Ch. 19 - Prob. 1ACCh. 19 - Before the discovery of prions, many (perhaps...Ch. 19 - Argue for and against the statement "Viruses are...
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- What is a non conjugative plasmid?arrow_forwardWhich of the following statements is not applicable to conjugation? A) OF factors are transferrable plasmids passed from one cell to another during conjugation. B) O During conjugation, rolling circle replication transfers an F factor from an F+ cell to an F- cell. ) O An F factor acquired during conjugation will automatically be integrated into the recipient's chromosome. D) O Conjugation requires physical contact between cells via the formation of a sex pilus. E) O An Hfr strain is capable of transferring a portion of the chromosome during conjugation.arrow_forwardWhich of the following is NOT a mechanism by which plasmids inerease the possibility of being present in the new generation of cells? A) O They can be present at a high number so that some copies will end up in each new cell after cell division. B) O They encode traits such as antibiotic resistance that are required for growth in some environments. C) O They cause the cell to replicate much more rapidly than cells that do not have plasmids. D) O They may carry host survival genes and self-preservation genes.arrow_forward
- All of the following are true statements concerning plasmids EXCEPT: O 1) They can carry genes that confer resistance against antibiotics 2) They can be found in bacteria, fungi, and protozoa 3) They carry genes that are required for growth and repair 4) They are small circular molecules of DNA. O 5) They can replicate autonomouslyarrow_forwardWhat is a plasmid and what is its function?arrow_forwardMost temperate phages integrate into the host chromosome, whereas some replicate as plasmids. Which kind of relationship would you think would be more likely to maintain the phage in the host cell? Why?arrow_forward
- In Figure 5-2, in which of the four processes shown can acomplete bacterial genome be transferred from one cellto another?arrow_forwardThe addition of DNase to a mixture of donor and recipientcells will prevent gene transfer viaa) DNA transformation.b) chromosome transfer by conjugation.c) plasmid transfer by conjugation.d) generalized transduction.arrow_forwardWhich of the following is a way in which plasmids may be introduced into host organisms?arrow_forward
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genetic recombination strategies of bacteria CONJUGATION, TRANSDUCTION AND TRANSFORMATION; Author: Scientist Cindy;https://www.youtube.com/watch?v=_Va8FZJEl9A;License: Standard youtube license