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Plasmids and Bacterial Genetics Quiz

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Plasmids are:

a)

Extrachromosomal DNA

b)

Chromosomal proteins

c)

RNA viruses

d)

Cell wall units

2.

Plasmids replicate:

a)

Independently of chromosome

b)

Only during conjugation

c)

Only in stationary phase

d)

Only with host genome

3.

R-plasmids carry:

a)

Metabolic genes

b)

Resistance genes

c)

Virulence factors only

d)

Sporulation genes

4.

Conjugation requires:

a)

Bacteriophage

b)

Pilus

c)

Exotoxin

d)

LPS

5.

F-plasmid is responsible for:

a)

Transformation

b)

Transduction

c)

Conjugation

d)

Spore formation

6.

Donor cell in conjugation is:

a)

F-

b)

Hfr

c)

Spore former

d)

Gram-positive only

7.

Generalized transduction is mediated by:

a)

F plasmid

b)

Pili

c)

Lytic phage

d)

Sex pilus

8.

Specialized transduction is mediated by:

a)

Lysogenic phage

b)

Lytic phage

c)

R-plasmid

d)

Transposon

9.

Transduction involves transfer of:

a)

Plasmids only

b)

Chromosomal DNA via phage

c)

Cell wall proteins

d)

RNA only

10.

Transferable drug resistance commonly occurs through:

a)

Endotoxin

b)

Conjugative plasmids

c)

Teichoic acids

d)

Spores

11.

Transposons carry:

a)

Ribosomal RNA

b)

Mobile resistance genes

c)

Phage capsid

d)

Antigen O

12.

Integrons are important in:

a)

Protein synthesis

b)

Accumulation of resistance genes

c)

Spore formation

d)

Motility

13.

Multiple drug resistance in hospitals is mainly due to:

a)

Capsules

b)

Plasmid transfer

c)

Fimbriae

d)

Spores

14.

Koch discovered:

a)

Antibiotics

b)

Tubercle bacillus

c)

DNA

d)

RNA polymerase

15.

Koch's postulates help in:

a)

Diagnosing viral disease only

b)

Establishing causative agent

c)

Measuring immunity

d)

Testing vaccines

16.

Koch isolated TB bacillus in:

a)

1870

b)

1882

c)

1901

d)

1920

17.

Robert Koch introduced:

a)

Aseptic surgery

b)

Solid media using agar

c)

Antiseptic methods

d)

Electron microscopy

18.

Koch worked extensively on:

a)

TB and cholera

b)

HIV

c)

Malaria

d)

Influenza

19.

Bacterial conjugation leads to:

a)

Mutation

b)

Horizontal gene transfer

c)

Protein synthesis

d)

Vertical inheritance only

20.

Plasmids can code for:

a)

Capsule polysaccharides

b)

Drug resistance & toxins

c)

Chromosome replication

d)

Ribosomes only