What kind of DNA that is transferred will result in E.coli becoming resistant to multiple antibiotics Question 2 options: Fertility plasmid R plasmid Gene for exotoxin Gene for exoenzyme

Horizontal gene transfer in bacteria can result in (check all that apply) Question 4 options: Organism producing virulence factors like exoenzymes Organism producing virulence factors like exotoxins Genes for capsule formation Genes for adherence molecules organism becoming resistant to antibiotics

6. A strain of bacteria living in a hospital is found to have a plasmid containing two genes: one forsex pilus construction, and one for tetracycline resistance. If these bacteria were to undergoconjugation with bacteria lacking this plasmid, and thereby transferred the plasmid to the otherbacteria, the most likely result would be:A. a genetically identical clone of bacteria containing the same plasmid.B. a possible spread of tetracycline resistance to other bacteria in the hospital.C. the subsequent loss of tetracycline resistance in the initially resistant strain.D. production of endospores in the bacterial progeny.E. temporary tetraploidy of the conjugating bacteria.

Plasmids used in cloning contain an antibiotic resistance gene.How does this help scientists?Choose 1 answer:Choose 1 answer:(Choice A)   Bacteria without the plasmid will be easier for scientists to identify.ABacteria without the plasmid will be easier for scientists to identify.(Choice B)   Only bacteria with the plasmid will grow on antibiotic containing nutrient plates. BOnly bacteria with the plasmid will grow on antibiotic containing nutrient plates.(Choice C)   It prevents the bacteria from infecting the scientists during the cloning process.CIt prevents the bacteria from infecting the scientists during the cloning process.(Choice D)   All of the prepared bacteria will be resistant to antibiotics.DAll of the prepared bacteria will be resistant to antibiotics.

Which of the four DNA repair systems described in this subject is specific to E coli?Group of answer choicesBase excision repairNucleotide excision repairDirect repairMismatch repair

New alleles that might allow a bacterium to become resistant to an antibiotic arise throughMultiple choice question.mutation.genetic drift.induction by the antibiotic.antibiotic alteration.