THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
ribose
|
|
|
deoxyribose
|
|
|
glucose
|
|
|
lactose
|
Detailed explanation-1: -An RNA molecule has a backbone made of alternating phosphate groups and the sugar ribose, rather than the deoxyribose found in DNA. Attached to each sugar is one of four bases: adenine (A), uracil (U), cytosine (C) or guanine (G).
Detailed explanation-2: -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-3: -While DNA contains deoxyribose, RNA contains ribose, characterised by the presence of the 2′-hydroxyl group on the pentose ring (Figure 5).
Detailed explanation-4: -Explanation: Ribose is a 5C sugar found in RNA, hence the name Ribose Nucleic Acid.
Detailed explanation-5: -The pentose sugar in DNA is called deoxyribose, and in RNA, the sugar is ribose.