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Which of the flowing shows coiled RNA strand and capsomeres ?
- a)Measles virus
- b)Retrovirus
- c)Polio virus
- d)Tobacco mosaic virus
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Which of the flowing shows coiled RNA strand and capsomeres ?a)Measles...
Tobacco mosaic virus (TMV) is the correct answer as it is a positive-sense single-stranded RNA virus that consists of a coiled RNA strand and capsomeres.
Structure of TMV:
- TMV has a rod-like structure that consists of a single-stranded RNA molecule that is coiled into a helix.
- The RNA molecule is surrounded by a protein coat made up of repeating protein subunits called capsomeres.
- The protein coat gives TMV its characteristic rod-like shape and protects the RNA molecule from degradation.
- The RNA molecule contains about 6400 nucleotides and encodes four proteins that are involved in virus replication and movement.
Importance of TMV:
- TMV is an important plant virus that infects a wide range of plants, including tobacco, tomato, and pepper.
- It causes significant damage to crops and can lead to reduced yield and quality.
- TMV is also used as a model virus in scientific research because of its simplicity and ease of study.
In conclusion, TMV is the correct answer as it is the only virus among the given options that has a coiled RNA strand and capsomeres.
Structure of TMV:
- TMV has a rod-like structure that consists of a single-stranded RNA molecule that is coiled into a helix.
- The RNA molecule is surrounded by a protein coat made up of repeating protein subunits called capsomeres.
- The protein coat gives TMV its characteristic rod-like shape and protects the RNA molecule from degradation.
- The RNA molecule contains about 6400 nucleotides and encodes four proteins that are involved in virus replication and movement.
Importance of TMV:
- TMV is an important plant virus that infects a wide range of plants, including tobacco, tomato, and pepper.
- It causes significant damage to crops and can lead to reduced yield and quality.
- TMV is also used as a model virus in scientific research because of its simplicity and ease of study.
In conclusion, TMV is the correct answer as it is the only virus among the given options that has a coiled RNA strand and capsomeres.
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Community Answer
Which of the flowing shows coiled RNA strand and capsomeres ?a)Measles...
The correct answer is option 'D' which is Tobacco mosaic virus. Let's discuss in detail.
Tobacco Mosaic Virus (TMV)
Tobacco mosaic virus is a single-stranded RNA virus that infects plants. It was the first virus to be discovered and is one of the most studied viruses. TMV is rod-shaped, about 300 nm long and 18 nm in diameter. It is composed of RNA and protein, with a helical symmetry.
Structure of TMV
The structure of TMV consists of the following parts:
1. RNA Strand
TMV contains a single-stranded RNA molecule as its genome. The RNA is about 6.4 kb in length and encodes four proteins.
2. Capsomeres
The protein coat of TMV is composed of repeating protein subunits called capsomeres. Each capsomere is made up of a single protein molecule and is shaped like a hollow cylinder. The capsomeres are arranged in a helical pattern around the RNA strand.
3. Helical symmetry
The capsomeres of TMV are arranged in a helical pattern around the RNA strand. This gives the virus its rod-shaped appearance.
Conclusion
In conclusion, TMV is the only virus among the given options that has a coiled RNA strand and capsomeres arranged in a helical pattern. The other viruses have different structures.
Tobacco Mosaic Virus (TMV)
Tobacco mosaic virus is a single-stranded RNA virus that infects plants. It was the first virus to be discovered and is one of the most studied viruses. TMV is rod-shaped, about 300 nm long and 18 nm in diameter. It is composed of RNA and protein, with a helical symmetry.
Structure of TMV
The structure of TMV consists of the following parts:
1. RNA Strand
TMV contains a single-stranded RNA molecule as its genome. The RNA is about 6.4 kb in length and encodes four proteins.
2. Capsomeres
The protein coat of TMV is composed of repeating protein subunits called capsomeres. Each capsomere is made up of a single protein molecule and is shaped like a hollow cylinder. The capsomeres are arranged in a helical pattern around the RNA strand.
3. Helical symmetry
The capsomeres of TMV are arranged in a helical pattern around the RNA strand. This gives the virus its rod-shaped appearance.
Conclusion
In conclusion, TMV is the only virus among the given options that has a coiled RNA strand and capsomeres arranged in a helical pattern. The other viruses have different structures.
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Which of the flowing shows coiled RNA strand and capsomeres ?a)Measles virusb)Retrovirusc)Polio virusd)Tobacco mosaic virusCorrect answer is option 'D'. Can you explain this answer?
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Which of the flowing shows coiled RNA strand and capsomeres ?a)Measles virusb)Retrovirusc)Polio virusd)Tobacco mosaic virusCorrect answer is option 'D'. 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 flowing shows coiled RNA strand and capsomeres ?a)Measles virusb)Retrovirusc)Polio virusd)Tobacco mosaic virusCorrect answer is option 'D'. 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 flowing shows coiled RNA strand and capsomeres ?a)Measles virusb)Retrovirusc)Polio virusd)Tobacco mosaic virusCorrect answer is option 'D'. Can you explain this answer?.
Which of the flowing shows coiled RNA strand and capsomeres ?a)Measles virusb)Retrovirusc)Polio virusd)Tobacco mosaic virusCorrect answer is option 'D'. 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 flowing shows coiled RNA strand and capsomeres ?a)Measles virusb)Retrovirusc)Polio virusd)Tobacco mosaic virusCorrect answer is option 'D'. 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 flowing shows coiled RNA strand and capsomeres ?a)Measles virusb)Retrovirusc)Polio virusd)Tobacco mosaic virusCorrect answer is option 'D'. Can you explain this answer?.
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