BIOLOGY
NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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glucose, water, and cellulose
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adenine, thymine, and cytosine
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a phosphate group, a sugar molecule, and a nitrogen
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a phosphate group, a five-carbon sugar, and an amino acid
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Detailed explanation-1: -Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA, two purines (adenine and guanine) and two pyrimidines (cytosine and thymine). A DNA molecule is composed of two strands.
Detailed explanation-2: -A molecule consisting of a nitrogen-containing base (adenine, guanine, thymine, or cytosine in DNA; adenine, guanine, uracil, or cytosine in RNA), a phosphate group, and a sugar (deoxyribose in DNA; ribose in RNA).
Detailed explanation-3: -Each nucleotide, in turn, is made up of a nitrogenous base, a pentose sugar, and a phosphate.
Detailed explanation-4: -A nucleoside consists of a nitrogenous base covalently attached to a sugar (ribose or deoxyribose) but without the phosphate group. A nucleotide consists of a nitrogenous base, a sugar (ribose or deoxyribose) and one to three phosphate groups.
Detailed explanation-5: -A single nucleotide comprises of 3 components. A nitrogenous base, which is attached to sugar molecule and a phosphate group. The nucleic acids, both DNA and RNA, consist of polymers of nucleotides.