FOOD CHEMISTRY
CARBOHYDRATES PROTEINS AND LIPIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Double helix
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Single helix
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Ladder
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Twisted ladder
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Detailed explanation-1: -The RNA is a single helix structure and is not formed by complementary base pairing. The basic building block of nucleic acids is a nucleotide. They are the monomers, or basic units, of DNA and RNA. They combine to form polynucleotide chains, which give RNA its structure.
Detailed explanation-2: -DNA and RNA are composed of nucleotides that are linked to one another in a chain by chemical bonds, called ester bonds, between the sugar base of one nucleotide and the phosphate group of the adjacent nucleotide.
Detailed explanation-3: -An RNA triple helix consists of three strands: A Watson–Crick RNA double helix whose major-groove establishes hydrogen bonds with the so-called “third strand”.
Detailed explanation-4: -A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T). In RNA, the base uracil (U) takes the place of thymine.