Viruses, Viroids and Prions
Viruses, Viroids and Prions: Overview
This Topic covers sub-topics such as Viruses, Bacteriophage, Tobacco Mosaic Virus, Prions, Classification of Viruses, Viroids, Obligate Parasites and, Destructive Parasites
Important Questions on Viruses, Viroids and Prions
Tobacco mosaic virus is a tubular filament of size
Which one of the following statements about viruses is correct?
Cauliflower mosaic virus contains:
Enzymes are absent in
Influenza virus has –
Viruses that infect bacteria, multiply and cause their lysis, are called –
Which of the following statements is not true for retroviruses?
Tobacco Mosaic Virus (TMV) genes are -
What is scrapie disease?
Match the following lists:
| List-I | List-II | List-III | |||
| A | HIV | (i) | Shelter | (I) | Auxospores |
| B | Mycobiont | (ii) | TMV | (II) | RNA |
| C | Deuteromycetes | (iii) | Pennales | (III) | Trichoderma |
| D | Cell wall with silica | (iv) | Conidia | (IV) | Mineral absorption |
The correct match is:
What does indicate in the figure ?
Which of the following can replicate within bacterial cells independently of chromosomal DNA?
Cauliflower mosaic virus contains:
Tobacco Mosaic Virus (TMV) genes are:
What is indicates A to D in this figure?
Identify the parts A and B shown in this figure.
The molecular weight of RNA of viroids is
