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Explain how have multidrug resistant pathogens in health clinics been propagated. Your Answer: by resisting the antibiotics that have been created some infections have a resistants to to all antibiotics so last resort onesare used and they include their own toxicities so it can be a hazard.
Question 1 8 /^8 pts
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Attempt Time Score LATEST Attempt^1 54 minutes 90.5 out of 100
Score for this quiz: 90.5 out of 100
Submitted Nov 11 at 10:56am This attempt took 54 minutes.
For many years, the first course of treatment for illness was antibiotics. Health prov
Question 2 5 / 5 pts
When the bacteria are cultured but separated by a filter so that they cannot directly touch, one of the bacterial strains can grow well on minimal medium. What type of genetic transmission occurred in this experiment? Explain how you know. Your Answer: transduction, because bacteria can be transfer genetic material with the absense of contact which if filter paper is blocking bacteria cells but some still grow that is the process Transduction occurred in this experiment because the bacteria did not require direct contact to transmit genetic material.
True or False: A bacterium that can grow well on minimal medium is an example of a prototroph. Correct! (^) True False Correct! Correct! Correct! Correct! Correct! Prophage Virus DNA integrated i Structural gene Gene not involved in t Gratuitous inducer Activates genes but a Operon Clusters of genes and Enzyme Acts as a catalyst for Match each of the following terms with the correct description:
Question 5 10 /^10 pts
Question 6 0 /^2 pts
A gene that is expressed all of the time regardless of conditions is called: Permanent rrect Answer (^) Constitutive u Answered (^) Inducible Minimal gratuitous Your Answer: gratuitous Fill in the Blank: IPTG is ainducer of the lac operon.
Question 7 2 /^2 pts
Question 8 2 /^2 pts
a, 3, ii b, 1, iii c, 2, i Correct! lytic; chromosome; stable virulent; membrane; stable virulent; chromosome; temperate lytic; membrane; temperate Aphage will always lyse its bacterial host, a phage that is integrated into the b phage.
Question 10 6 /^6 pts
Question 11 6 /^6 pts
Question 12 4 /^4 pts
Label each numbered phase on the bacterial growth diagram. Your Answer: 1.lag
- log (exponential growth) 3.stationary 1. Lag Phase 2. Log Phase 3. Stationary Phase
In which cellular compartment are bacterial DNA and plasmids contained? Your Answer: cytoplasm Cytoplasm Match each of the following terms with the correct description: Correct! (^) F(+) cell Capable of donating g Correct! (^) Transduction Transfer of genetic ma Correct! (^) F- factor Circular double strand Correct! (^) F(-) cell Capable of receiving g Correct! (^) r-determinants Gene that confers spe
Question 15 10 /^10 pts
Correct! (^) False True True or false: Bacteria can be grown only in liquid culture on minimal medium.
Question 16 2 /^2 pts
Question 17 6 / 6 pts
In order to undergo , bacteria must be physiologically competent, which sometimes is done through the use of chemicals and heat or electroporation. The DNA is then taken up through pores in the membrane, and subsequently one strand is digested by. The single remaining strand forms a with the host chromosome, and eventually is integrated to become part of the chromosome. Correct!Correct! transformation; nucleases; heteroduplex transfection; catalases; homoduplex transformation; proteases; heteroduplex transfection; proteases; homoduplex
When genes are very closely mapped, they can be transduced together via phage in a process called. Colinkage Correct! (^) Cotransduction Phage-linking Cotransformation Correct! Inducible Constitutive Stationary Repressible An enzyme that can be turned off by appropriate signals or conditions is called:
Question 21 2 /^2 pts
Question 22 2 /^2 pts
uu Fill in the blank: A virulent phage mustits host to release progeny. Your Answer: lyse lyse rrect Answe r False True True or false: The RyhB negative regulator is an example of an rRNA.
Question 23 0 /^2 pts
Quiz Score: 90.5 out of
