THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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RNA contains Ribose
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RNA is single stranded
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RNA contains Uracil
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RNA makes DNA
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Detailed explanation-1: -RNA does not have double stranded -helix structure.
Detailed explanation-2: -Unlike DNA, thymine (T) is not present in RNA molecules, T is replaced by the uracil (U) base in RNA. The statement that is not true about DNA is that DNA contains adenine, guanine, cytosine, and uracil. So, the correct option is (e).
Detailed explanation-3: -Answer and Explanation: The right option is b) DNA is resistant to alkaline hydrolysis while RNA is not. RNA is susceptible to alkaline hydrolysis because the ribose sugar in RNA has a hydroxyl group at the 2’ position, which makes RNA chemically unstable compared to DNA.
Detailed explanation-4: -Complete answer: RNA or ribonucleic acid is the genetic material of many organisms like viruses. It consists of nucleotides that are composed of 3 elements, particularly sugar molecules, element bases, and phosphate. Sugar utilized in RNA is ribose sugar.
Detailed explanation-5: -Answer and Explanation: (b) RNA is the only genetic material in viruses is the incorrect answer.