The viruses in an attenuated vaccine have no genome continue to replicate are us

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Home ‣ Microbiology ‣ Viruses See What Others Are Saying!

Question
The viruses in an attenuated vaccine
Options
A. have no genome
B. continue to replicate
C. are usually larger than bacteria
D. is altered with chemicals

Correct Answer

continue to replicate

More questions

1. Due to which of the following DNA repair mechanisms, one is able to distinguish newly synthesized DNA strands from older one?
Options
A. New strands do not contain cytosine bases
B. New strands are lower in molecular size
C. Old strands are methylated while new strands are not
D. New strands are methylated while old strands are not

Discuss

Correct Answer: Old strands are methylated while new strands are not

2. Media containing spores and thermolabile constituents are sterilized by
Options
A. pasteurization
B. UV radiation
C. dry heat
D. tyndalization

Discuss

Correct Answer: UV radiation

3. Suspension cultures consist of cells and cell aggregates, growing dispersed in
Options
A. liquid medium
B. solid nutrient medium
C. solid or liquid medium
D. none of these

Discuss

Correct Answer: liquid medium

4. Steam exposure of a material at 100�C for 20 minutes for three consecutive days is known as
Options
A. inspissation
B. tyndallization
C. autoclaving
D. none of these

Discuss

Correct Answer: tyndallization

5. Which of the following bacteria is acid-fast?
Options
A. Actinomyces
B. Nocardia
C. Streptomyces
D. Corynebacterium

Discuss

Correct Answer: Nocardia

6. Which of the following bacteria lack a cell wall and are therefore resistant to penicillin?
Options
A. Cyanobacteria
B. Mycoplasmas
C. Bdellovibrios
D. Spirochetes

Discuss

Correct Answer: Mycoplasmas

7. The synthesis of mRNA based on a DNA template is called
Options
A. DNA replication
B. transcription
C. translation
D. DNA restriction

Discuss

Correct Answer: transcription

8. Cyanobacteria have
Options
A. a gram-positive cell wall
B. a gram-negative cell wall
C. Neither (a) nor (b)
D. No cell wall

Discuss

Correct Answer: a gram-negative cell wall

9. Which of the following is/are included in Kingdom Prokaryotae?
Options
A. Bacteria
B. Protozoa
C. Fungi
D. All of these

Discuss

Correct Answer: Bacteria

10. Which of the following enzyme(s) is/are required for lactose fermentation?
Options
A. Transacetylase
B. ?-galactosidase
C. Galactoside permease
D. All of these

Discuss

Correct Answer: All of these

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