BIOLOGY
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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single stranded
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may contain uracil
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may contain thymine
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contains ribose sugar
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Detailed explanation-1: -RNA nucleotides contain the nitrogenous bases adenine, cytosine, and guanine. However, they do not contain thymine, which is instead replaced by uracil, symbolized by a “U.” RNA exists as a single-stranded molecule rather than a double-stranded helix.
Detailed explanation-2: -2. Which of the following are not the components of RNA? Explanation: Thymine is present in DNA but not in RNA.
Detailed explanation-3: -DNA contains four bases which are adenine (A), guanine (G), cytosine (C) and thymine (T). RNA also contains four bases, the first three bases are same as in DNA but the fourth one is uracil (U).
Detailed explanation-4: -Both DNA and RNA consists of polymers of nucleotides. RNA is single stranded but DNA is double stranded. DNA polynucleotide contains thymine but RNA polynucleotide contains uracil.