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Consider the following statements with respect to viruses:
1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.
2. The genetic material inside the virus consists of RNA only.
3. A virus which infects and replicates within a bacteria is called a viroid.
4. The diseases of Herpes and Hepatitis are caused by viruses.
How many of the above statements are correct?
- a)Only one
- b)Only two
- c)Only three
- d)All four
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements with respect to viruses:1. A virus c...
- Viruses are non-living and made up of DNA or RNA surrounded by a protein coat. They can replicate. However, they cannot reproduce on their own. They reproduce when inside a living cell. Therefore viruses pose a special classification problem. Viruses are extremely small and can be seen only under the electron microscope. They are smaller than the smallest bacteria. They can pass through fiters which retain bacteria.
- Virus has a simple structure consisting of a core and a cover. The core particle is the genetic material, either DNA or RNA. The cover is a protein coat called capsid. Hence statement 2 is not correct.
- A virus cannot reproduce by itself. For its reproduction it needs to enter the cell of some organism. From the host cell, it uses the raw material and enzymes and energy generating machinery of the host cell to produce its own DNA. A number of virus particles are thus formed inside the host cell. The host cell bursts to release the new virus particles. Hence statement 1 is correct.
- Viruses are known to attack bacteria, plants or animals. Viruses which invade bacteria are called bacteriophages. Viruses are highly specific in their relationship with the host and tissue.
- Viroids are circular RNA molecules, consisting of several hundred nucleotides. They infect plants and even kill them. In plants, they use enzymes of the plant cells to replicate like the viruses do. Hence statement 3 is not correct.
- Viruses are responsible for causing many diseases, including:
- AIDS, Common cold, Ebola, Herpes, Influenza, Measles, Chickenpox and shingles, Coronavirus disease 2019 (COVID-19), Hepatits, Small Pox, Dengue etc. Antibiotics designed for bacteria have no effect on viruses. Hence statement 4 is correct.
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Community Answer
Consider the following statements with respect to viruses:1. A virus c...
Incorrect Statements:
1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.
- This statement is incorrect. Viruses can reproduce, but they require a host organism to do so. Once inside a host cell, a virus can hijack the host's cellular machinery to replicate itself.
2. The genetic material inside the virus consists of RNA only.
- This statement is incorrect. Viruses can have genetic material made up of either DNA or RNA. Some viruses have RNA as their genetic material, while others have DNA.
3. A virus which infects and replicates within a bacteria is called a viroid.
- This statement is incorrect. A virus that infects and replicates within a bacteria is called a bacteriophage, not a viroid. Viroids are infectious RNA molecules that can infect plants.
Correct Statements:
4. The diseases of Herpes and Hepatitis are caused by viruses.
- This statement is correct. Herpes and Hepatitis are viral infections caused by the herpes simplex virus and hepatitis viruses, respectively. These viruses can cause a range of symptoms and health complications in infected individuals.
Therefore, only two of the given statements are correct, which are statements 4.
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Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer?
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Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer?.
Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
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Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Consider the following statements with respect to viruses:1. A virus cannot reproduce by itself and needs to enter an organism for its reproduction.2. The genetic material inside the virus consists of RNA only.3. A virus which infects and replicates within a bacteria is called a viroid.4. The diseases of Herpes and Hepatitis are caused by viruses.How many of the above statements are correct?a)Only oneb)Only twoc)Only threed)All fourCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice UPSC tests.
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