Antibiotic resistance

Question 1

Describe bacterial virus genomes

Answer 1

Made of either RNA or DNA and can be either single- or double-stranded, linear or circular.

Question 2

How many base pairs make up the typical bacteriophage genome?

Answer 2

3000-300,000

Question 3

Describe what is included in a transposon.

Answer 3

Hybrid of DNA with virulence factor in the middle and flanked by insertion sequences

Question 4

What is it called when a bacterium is able to pick up naked DNA?

Answer 4

Competence

Question 5

How is the DNA taken up into the cell?

Answer 5

One strand is degraded while the other one is taken into the cell

Question 6

Three fates of transformed DNA

Answer 6

Degradation
Plasmid placement
Integration into the chromosome

Question 7

Recombination

Answer 7

Incorporation of the exogenote into the genome of the bacterium

Question 8

oriT

Answer 8

Origin of transfer

Question 9

How is DNA resynthesized during conjugation?

Answer 9

In a rolling mechanism

Question 10

Why are R plasmids so bad?

Answer 10

Multiple drug resistances can be carried on a single plasmid, and they can be transferred not only to the same species, but similar species and other members of the family.