C plasmids typically carry hundreds of genes usually

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C) Plasmids typically carry hundreds of genes, usually of multiple metabolic pathways. D) Plasmids that are copied via rolling circle replication do not undergo bidirectional replication. E) None of the above is applicable to plasmids. Question 5 Your answer is CORRECT. Which of the following is not required for prokaryotic transcription? A) sigma factor B) core RNA polymerase C) promoter D) A, B, and C are required for transcription E) Only A and B are required. Question 6 Your answer is INCORRECT. Which of the following can cause transcription to end? A) chaperone protein B) sigma factor C) stop codon
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D) rho E) more than one of the above Question 7 Your answer is CORRECT. What is the importance of the stop codon UAG? A) It tells the DNA polymerase to stop replicating the chromosome. B) It tells the RNA polymerase to stop transcribing the chromosome. C) It tells the tRNA to stop transcribing the DNA. D) It tells the ribosome to stop translating the mRNA. E) It signals the end of the operon. Question 8 Your answer is CORRECT. The __________ of transcription and translation helps microbes rapidly adjust gene expression to changes in their environment. A) coupling B) separation C) processes D) slowing E) pausing Question 9 Your answer is CORRECT. Chaperones are proteins that A) export other proteins out of the cell. B) help other proteins fold properly. C) degrade misfolded proteins. D) bind other proteins to inactivate them. Question 10 Your answer is CORRECT. The DNA that comprises prokaryotic genomes has been acquired solely from prior generations. A) True B) False Question 11 Your answer is CORRECT. Which of the following is not applicable to transformation? A) Translocasomes are the membrane transporters of DNA into the cell. B) Competence factors induce the expression of the transformation machinery. C) Cells that do not naturally perform transformation can be made to do so by treatment with chemicals or electrical impulses. D) A bacterial population becomes compentent as cell numbers increase leading to an increased level of competence factors. E) All the above are applicable to transformation. Question 12 Your answer is CORRECT. Which of the following is not applicable to conjugation? A) F factors are transferrable plasmids passed from one cell to another during conjugation. B) During conjugation, rolling circle replication transfers an F factor from an F+ cell to an F- cell. C) An F factor acquired during conjugation will automatically be integrated into the recipients chromosome. D) Conjugation requires physical contact between cells via the formation of a sex pilus. E) An Hfr strain is capable of transferring a portion of the chromosome during conjugation. Question 13 Your answer is CORRECT. Bacterium X has acquired an F prime factor from bacterium Y via conjugation. This means that A) bacterium X has acquired a gene or genes from the chromosome of bacterium Y.
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