BIOLOGY
NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Is a six-carbon sugar and the sugar in RNA is a five-carbon sugar
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Can form a double-stranded molecule
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Can attach to a phosphate
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Contains one less oxygen atom
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Detailed explanation-1: -There are three differences between the structures of DNA and RNA: The sugars in the backbone of DNA and RNA differ by one oxygen atom. The deoxy-prefix in DNA indicates that the sugar is like ribose, but with one less oxygen atom. DNA is double stranded but RNA contains only a single strand.
Detailed explanation-2: -There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
Detailed explanation-3: -The really important difference is that RNA has an extra oxygen atom. This makes RNA less stable than DNA. You might think that being unstable is a bad thing, but there are advantages. Organisms that need to change rapidly tend to use RNA as their genetic material.
Detailed explanation-4: -Ribose is made of five carbon atoms, ten hydrogen atoms and five oxygen atoms.
Detailed explanation-5: -DNA is a double-stranded molecule that has a long chain of nucleotides. RNA is a single-stranded molecule which has a shorter chain of nucleotides. DNA replicates on its own, it is self-replicating. RNA does not replicate on its own.