BIOLOGY
NUCLEIC ACIDS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
RNA is a protein, whereas DNA is a nucleic acid
|
|
|
DNA is a protein, whereas RNA is a nucleic acid
|
|
|
DNA nucleotides contain a different sugar than RNA nucleotides
|
|
|
RNA is a double helix, but DNA is single-stranded
|
Detailed explanation-1: -The statement ‘DNA nucleotides contain a different sugar than RNA nucleotide’ BEST summarizes the structural differences between DNA and RNA (Option C). DNA is a double helix molecule composed of two long chains of nucleotides that are paired by hydrogen bonds, whereas RNA molecule is a single strand of nucleotides.
Detailed explanation-2: -So, the three main structural differences between RNA and DNA are as follows: RNA is single-stranded while DNA is double-stranded. RNA contains uracil while DNA contains thymine. RNA has the sugar ribose while DNA has the sugar deoxyribose.
Detailed explanation-3: -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-4: -The five-carbon sugar in DNA is called deoxyribose, while in RNA, the sugar is ribose. These two are very similar in structure, with just one difference: the second carbon of ribose bears a hydroxyl group, while the equivalent carbon of deoxyribose has a hydrogen instead.
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.