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Which of the following shows coiled RNA strand and capsomeres? [2014]
a) Polio virus
b) Tobacco mosaic virus
c) Measles virus
d) Retrovirus
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Which of the following shows coiled RNA strand and capsomeres? [2...
(b) TMV (Tobacco Mosaic Virus) is a rodshaped virus. The rod has a core which contains helically coiled single stranded RNA . There is a protective covering of protein called capsid around the infective part. Capsid consists of small subunits called capsomeres and has antigenic property.
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Which of the following shows coiled RNA strand and capsomeres? [2...
The correct answer is option B, Tobacco mosaic virus.
Explanation:
A virus is a non-living infectious agent that replicates inside living cells. It consists of genetic material (DNA or RNA) enclosed in a protein coat called a capsid. The capsid is made up of smaller protein subunits called capsomeres. Some viruses also have an outer envelope made up of lipids and proteins.
Different viruses have different shapes and structures, which can be observed under an electron microscope. The structure of a virus is important for its ability to infect and replicate inside host cells.
Among the given options, only the Tobacco mosaic virus has a coiled RNA strand and capsomeres, which are characteristic features of this virus. This virus causes a disease in tobacco plants and is one of the most extensively studied plant viruses.
The structure of the Tobacco mosaic virus can be described as follows:
- The virus has a rod-shaped structure with a length of about 300 nm and a diameter of about 18 nm.
- The capsid is made up of 2130 protein subunits called capsomeres, arranged helically around the RNA strand.
- The RNA strand is tightly coiled inside the capsid and is about 6400 nucleotides long.
- The virus does not have an outer envelope.
Therefore, option B (Tobacco mosaic virus) is the correct answer.
Explanation:
A virus is a non-living infectious agent that replicates inside living cells. It consists of genetic material (DNA or RNA) enclosed in a protein coat called a capsid. The capsid is made up of smaller protein subunits called capsomeres. Some viruses also have an outer envelope made up of lipids and proteins.
Different viruses have different shapes and structures, which can be observed under an electron microscope. The structure of a virus is important for its ability to infect and replicate inside host cells.
Among the given options, only the Tobacco mosaic virus has a coiled RNA strand and capsomeres, which are characteristic features of this virus. This virus causes a disease in tobacco plants and is one of the most extensively studied plant viruses.
The structure of the Tobacco mosaic virus can be described as follows:
- The virus has a rod-shaped structure with a length of about 300 nm and a diameter of about 18 nm.
- The capsid is made up of 2130 protein subunits called capsomeres, arranged helically around the RNA strand.
- The RNA strand is tightly coiled inside the capsid and is about 6400 nucleotides long.
- The virus does not have an outer envelope.
Therefore, option B (Tobacco mosaic virus) is the correct answer.
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Which of the following shows coiled RNA strand and capsomeres? [2...
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Which of the following shows coiled RNA strand and capsomeres? [2014]a) Polio virusb) Tobacco mosaic virusc) Measles virusd) RetrovirusCorrect answer is option 'B'. Can you explain this answer?
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Which of the following shows coiled RNA strand and capsomeres? [2014]a) Polio virusb) Tobacco mosaic virusc) Measles virusd) RetrovirusCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following shows coiled RNA strand and capsomeres? [2014]a) Polio virusb) Tobacco mosaic virusc) Measles virusd) RetrovirusCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following shows coiled RNA strand and capsomeres? [2014]a) Polio virusb) Tobacco mosaic virusc) Measles virusd) RetrovirusCorrect answer is option 'B'. Can you explain this answer?.
Which of the following shows coiled RNA strand and capsomeres? [2014]a) Polio virusb) Tobacco mosaic virusc) Measles virusd) RetrovirusCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following shows coiled RNA strand and capsomeres? [2014]a) Polio virusb) Tobacco mosaic virusc) Measles virusd) RetrovirusCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following shows coiled RNA strand and capsomeres? [2014]a) Polio virusb) Tobacco mosaic virusc) Measles virusd) RetrovirusCorrect answer is option 'B'. Can you explain this answer?.
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