Virus Viroids Prions
High-Yield Trend
Questions 8 MCQs
The causative agent of mad-cow disease is a:
1. bacterium
2. prion
3. worm
4. virus
T.O. Diener discovered a:
1. free infectious RNA
2. free infectious DNA
3. infectious protein
4. bacteriophage
Virus envelope is known as:
1. capsid
2. virion
3. nucleoprotein
4. core
Infectious proteins are present in:
| 1. | geminiviruses | 2. | prions |
| 3. | viroids | 4. | satellite viruses |
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 |
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. |
Viroids differ from viruses in having;
| 1. | DNA molecules without protein coat |
| 2. | RNA molecules with protein coat |
| 3. | RNA molecules without protein coat |
| 4. | DNA molecules with protein coat |
Which of the following statements is incorrect?
| 1. | Prions consist of abnormally folded proteins |
| 2. | Viroids lack a protein coat |
| 3. | Viruses are obligate parasites |
| 4. | Infective constituent in viruses is the protein coat |
Preparing Virus Viroids Prions for NEET
Virus Viroids Prions is a specific sub-topic that frequently appears in the NEET examination. Understanding the underlying principles and practicing targeted questions is key to mastering this concept.
The questions compiled above are previous year questions (PYQs) directly related to Virus Viroids Prions. Practicing these specific questions helps you understand the difficulty level and the examiner's approach to this topic.
Topic Frequently Asked Questions
Is Virus Viroids Prions a high-weightage topic?
You can refer to the priority and consistency badges at the top of this page. High priority topics should be thoroughly revised multiple times before the exam.
Should I memorize the solutions?
No, it is highly recommended to understand the core concept and methodology behind each solution rather than memorizing them, as exact questions are rarely repeated, but the concepts definitely are.