NEET Exam > NEET Questions > Which of the following statements is true?a)S...
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Which of the following statements is true?
- a)Sugar component of a nucleotide is ribose
- b)Sugar component of a nucleotide is deoxyribose
- c)The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkage
- d)The sugar molecule of the nucleotide is in L-configuration
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Which of the following statements is true?a)Sugar component of a nucle...
Option A: Sugar component of a nucleotide is ribose. This statement is true for RNA nucleotides. However, for DNA, the sugar is deoxyribose, not ribose.
Option B: Sugar component of a nucleotide is deoxyribose. This statement is true for DNA nucleotides, but not for RNA nucleotides.
Option C: The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkage. This statement is universally true for all nucleotides, whether in DNA or RNA. The nitrogenous base is attached to the sugar molecule via a glycosidic bond.
Option D: The sugar molecule of the nucleotide is in L-configuration. This statement is false. The sugar in nucleotides is in the D-configuration.
The correct answer is:
Option C: The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkage.
Most Upvoted Answer
Which of the following statements is true?a)Sugar component of a nucle...
Sugar Component of a Nucleotide
The correct answer is b) Sugar component of a nucleotide is deoxyribose.
Explanation:
Nucleotides are the building blocks of nucleic acids such as DNA and RNA. Each nucleotide consists of three components: a nitrogenous base, a sugar molecule, and a phosphate group.
- Sugar Component: The sugar component of a nucleotide can be either ribose or deoxyribose. Ribose has a hydroxyl (-OH) group attached to the 2' carbon atom, while deoxyribose lacks this group.
- Ribose vs. Deoxyribose: DNA contains deoxyribose, while RNA contains ribose. Deoxyribose is a modified form of ribose with a hydrogen atom instead of a hydroxyl group attached to the 2' carbon atom.
- Glycosidic Linkage: The nitrogenous base in a nucleotide is attached to the sugar molecule by a glycosidic linkage.
- L-Configuration: The sugar molecule in a nucleotide is in the D-configuration, not the L-configuration.
In summary, the correct statement is that the sugar component of a nucleotide is deoxyribose.
The correct answer is b) Sugar component of a nucleotide is deoxyribose.
Explanation:
Nucleotides are the building blocks of nucleic acids such as DNA and RNA. Each nucleotide consists of three components: a nitrogenous base, a sugar molecule, and a phosphate group.
- Sugar Component: The sugar component of a nucleotide can be either ribose or deoxyribose. Ribose has a hydroxyl (-OH) group attached to the 2' carbon atom, while deoxyribose lacks this group.
- Ribose vs. Deoxyribose: DNA contains deoxyribose, while RNA contains ribose. Deoxyribose is a modified form of ribose with a hydrogen atom instead of a hydroxyl group attached to the 2' carbon atom.
- Glycosidic Linkage: The nitrogenous base in a nucleotide is attached to the sugar molecule by a glycosidic linkage.
- L-Configuration: The sugar molecule in a nucleotide is in the D-configuration, not the L-configuration.
In summary, the correct statement is that the sugar component of a nucleotide is deoxyribose.
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Community Answer
Which of the following statements is true?a)Sugar component of a nucle...
Here we can go by elimination method;
# The sugar component of nucleotide may be ribose or deoxyribose so A and B options are ruled out.
# The sugar component is dextro in both RNA and DNA ( specifically Beta- D ribose in RNA and Beta-D-2 deoxy ribose in DNA ) so option D is also ruled out.
And C statement is true anyways,
Bond b/w sugar and base = N-Glycosidic bond ( forms nucleoside)
b/w nucleoside and phosphate group= phosphoester bond (forms nucleotide)
b/w two nucleotide = phosphodiester bond (forms nucleotide chain)
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Which of the following statements is true?a)Sugar component of a nucleotide is riboseb)Sugar component of a nucleotide is deoxyribosec)The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkaged)The sugar molecule of the nucleotide is in L-configurationCorrect answer is option 'C'. Can you explain this answer?
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Which of the following statements is true?a)Sugar component of a nucleotide is riboseb)Sugar component of a nucleotide is deoxyribosec)The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkaged)The sugar molecule of the nucleotide is in L-configurationCorrect answer is option 'C'. 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 statements is true?a)Sugar component of a nucleotide is riboseb)Sugar component of a nucleotide is deoxyribosec)The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkaged)The sugar molecule of the nucleotide is in L-configurationCorrect answer is option 'C'. 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 statements is true?a)Sugar component of a nucleotide is riboseb)Sugar component of a nucleotide is deoxyribosec)The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkaged)The sugar molecule of the nucleotide is in L-configurationCorrect answer is option 'C'. Can you explain this answer?.
Which of the following statements is true?a)Sugar component of a nucleotide is riboseb)Sugar component of a nucleotide is deoxyribosec)The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkaged)The sugar molecule of the nucleotide is in L-configurationCorrect answer is option 'C'. 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 statements is true?a)Sugar component of a nucleotide is riboseb)Sugar component of a nucleotide is deoxyribosec)The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkaged)The sugar molecule of the nucleotide is in L-configurationCorrect answer is option 'C'. 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 statements is true?a)Sugar component of a nucleotide is riboseb)Sugar component of a nucleotide is deoxyribosec)The bases in nucleotides are attached to a pentose sugar moiety by a glycosidic linkaged)The sugar molecule of the nucleotide is in L-configurationCorrect answer is option 'C'. Can you explain this answer?.
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