573197
Description
Quiz by gina_evans0312, updated more than 1 year ago
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Created by gina_evans0312
over 10 years ago
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Question 1
Question
What do the HCD genes expressed by the the gram -ve P.aeruginosa do?
Answer
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Increase pathogenicity
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Allow biofilm formation
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Cause a fibrin clot barrier
Question 2
Question
At HCD, P.aeruginosa produced which Homoserine Lactone?
Answer
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LasI, which are detected by LasR
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RhlI which are detected by RhlR
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Mrl, which are detected by MrR
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FasI, which are detected by FasR
Question 3
Question
The homoserine lactones of P. aeruginosa can be detected in the sputum of Cystic fibrosis patients
Answer
- True
- False
Question 4
Question
The strains of S.aureus produce 1 of 4 peptides
Answer
- True
- False
Question 5
Question
What is the role of each peptide produced by S.aureus?
Answer
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Stimulates other strains that produce the same peptide
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Inhibits other strains that produce the same peptide
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Stimulates other strains that produce different peptides
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Inhibits other strains that produce different peptides
Question 6
Question
P2 & P3 are divergent promoters (they go in opposite directions)
Answer
- True
- False
Question 7
Question
In E.Coli, of the P3 stimulated proteins, AgrA is the intracellular transducer,....
Answer
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AgrB is the exit channel, AgrD is the autoinducer, AgrC is the receptor
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AgrV is the exit channel, AgrC is the autoinducer, AgrD is the receptor
Question 8
Question
P2 transcribes RNAIII
Answer
- True
- False
Question 9
Question
RNAIII controls 100s of genes
Answer
- True
- False
Question 10
Question
RNAIII binds to the mRNA close to the ribosomal binding site, and does what?
Answer
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Alters the secondary structure to inhibit/promote ribosomal binding
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Alters the super- secondary structure to inhibit/promote ribosomal binding
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Alters the tertiary structure to inhibit/promote ribosomal binding
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