- 1(current)
Q. No.Select the wrong statement:
| 1. | The viroids were discovered by D.J lvanovsky. |
| 2. | W.M. Stanley showed that viruses could be crystallized. |
| 3. | The term 'contagium vivum fluidum' was coined by MW Beijerinck. |
| 4. | Mosaic disease in tobacco and AIDS in human beings are caused by viruses. |
Subtopic: Â Virus, Viroids & Prions |
 82%
Level 1: 80%+
NEET - 2015
Hints
Which of the following shows coiled RNA strand and capsomeres?
| 1. | Poliovirus | 2. | Tobacco mosaic virus |
| 3. | Measles virus | 4. | Retrovirus |
Subtopic: Â Virus, Viroids & Prions |
 91%
Level 1: 80%+
AIPMT - 2014
Hints
Viruses have:
1. DNA enclosed in a protein coat
2. Prokaryotic nucleus
3. Single chromosome
4. Both DNA and RNA
Subtopic: Â Virus, Viroids & Prions |
 76%
Level 2: 60%+
AIPMT - 2014
Hints
Which statement is wrong for viruses?
| 1. | All are parasites |
| 2. | All of them have helical symmetry |
| 3. | They have the ability to synthesize nucleic acids and proteins |
| 4. | Antibiotics have no effect on them |
Subtopic: Â Virus, Viroids & Prions |
 56%
Level 3: 35%-60%
AIPMT - 2012
Hints
Subtopic: Â Virus, Viroids & Prions |
 90%
Level 1: 80%+
AIPMT - 2010
Hints
Subtopic: Â Virus, Viroids & Prions |
 80%
Level 1: 80%+
AIPMT - 2010
Hints
Given below is the diagram of a bacteriophage. In which one of the options, all the four parts A, B, C and D are correct?
| A | B | C | D | |
| 1. | Sheath | Collar | Head | Tail fibres |
| 2. | Head | Sheath | Collar | Tail fibres |
| 3. | Collar | Tail fibres | Head | Sheath |
| 4. | Tail fibres | Head | Sheath | Collar |
Subtopic: Â Virus, Viroids & Prions |
 95%
Level 1: 80%+
AIPMT - 2010
Hints
T.O. Diener discovered a:
1. free infectious RNA
2. free infectious DNA
3. infectious protein
4. bacteriophage
Subtopic: Â Virus, Viroids & Prions |
 84%
Level 1: 80%+
AIPMT - 2009
Hints
Subtopic: Â Virus, Viroids & Prions |
 91%
Level 1: 80%+
AIPMT - 2006
Hints
Links
- 1(current)
Q. No.
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