CELL STRUCTURES AND FUNCTION
BIO MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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deoxyribose, ribose
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ribose, deoxyribose
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ribose, phosphate
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ribose, uracil
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Detailed explanation-1: -Sugar. Both DNA and RNA are built with a sugar backbone, but whereas the sugar in DNA is called deoxyribose (left in image), the sugar in RNA is called simply ribose (right in image).
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: -Explanation: Ribose is a 5C sugar found in RNA, hence the name Ribose Nucleic Acid.
Detailed explanation-4: -Unlike DNA, RNA is usually single-stranded. Additionally, RNA contains ribose sugars rather than deoxyribose sugars, which makes RNA more unstable and more prone to degradation. RNA is synthesized from DNA by an enzyme known as RNA polymerase during a process called transcription.
Detailed explanation-5: -DNA has deoxyribose sugar. It is called so due to the absence of one oxygen in the second carbon (as seen in the image). RNA is made of ribose sugar.