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Which of the following is not a characteristic of RNA?
  • a)
    It has ribose sugar molecules in the nucleotides
  • b)
    It is a single stranded molecule
  • c)
    It is not stable under alkaline conditions
  • d)
    All the 3 types of RNA are involved in protein synthesis
Correct answer is option 'C'. Can you explain this answer?
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Which of the following is not a characteristic of RNA?a)It has ribose ...
The hydrogen atom which is attached to the hydroxyl group on the 2’- C atom of the RNA can be easily deprotonated. The presence of larger grooves in RNA is also a reason for it not being stable under alkaline conditions. But under the same condition, the DNA molecule will be stable for it has smaller grooves which cannot be easily attacked or penetrated.
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Read the passage given below and answer the following questions:EVIDENCE FOR THE FIBROUS NATURE OF DNAThe basic chemical formula of DNA is now well established. As shown in Figure 1 it consists of a very long chain, the backbone of which is made up of alternate sugar and phosphate groups, joined together in regular 3’ 5’ phosphate di-ester linkages. To each sugar is attached a nitrogenous base, only four different kinds of which are commonly found in DNA. Two of these---adenine and guanine--- are purines, and the other two thymine and cytosine-are pyrimidines. A fifth base, 5-methyl cytosine, occurs in smaller amounts in certain organisms, and a sixth, 5-hydroxy-methyl-cytosine, is found instead of cytosine in the T even phages. It should be noted that the chain is unbranched, a consequence of the regular internucleotide linkage. On the other hand the sequence of the different nucleotides is, as far as can be ascertained,completely irregular. Thus, DNA has some features which are regular, and some which are irregular. A similar conception of the DNA molecule as a long thin fiber is obtained from physicochemical analysis involving sedimentation, diffusion, light scattering, and viscosity measurements. These techniques indicate that DNA is a very asymmetrical structure approximately 20 A wide and many thousands of angstroms long. Estimates of its molecular weight currently center between 5 X106 and X107 (approximately 3 X104 nucleotides). Surprisingly each of these measurements tend to suggest that the DNA is relatively rigid, a puzzling finding in view of the large number of single bonds (5 per nucleotid e) in the phosphate-sugar back bone. Recently these indirect inferences have been confirmed by electron microscopy.Q. DNA molecule has ___________ internucleotide linkage and __________ sequence of the different nucleotides

Which of the following is not a characteristic of RNA?a)It has ribose sugar molecules in the nucleotidesb)It is a single stranded moleculec)It is not stable under alkaline conditionsd)All the 3 types of RNA are involved in protein synthesisCorrect answer is option 'C'. Can you explain this answer?
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Which of the following is not a characteristic of RNA?a)It has ribose sugar molecules in the nucleotidesb)It is a single stranded moleculec)It is not stable under alkaline conditionsd)All the 3 types of RNA are involved in protein synthesisCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which of the following is not a characteristic of RNA?a)It has ribose sugar molecules in the nucleotidesb)It is a single stranded moleculec)It is not stable under alkaline conditionsd)All the 3 types of RNA are involved in protein synthesisCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is not a characteristic of RNA?a)It has ribose sugar molecules in the nucleotidesb)It is a single stranded moleculec)It is not stable under alkaline conditionsd)All the 3 types of RNA are involved in protein synthesisCorrect answer is option 'C'. Can you explain this answer?.
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