BIOMOLECULES AND ENZYMES

BIOLOGY

NUCLEIC ACIDS

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which of the following is NOT one of the three groups comprising the nucleotide?

A	R group
B	phosphate
C	nitrogenous base
D	pentose sugar

Explanation:

Detailed explanation-1: -Nucleotides that make the DNA strands contain deoxyribose sugar, phospate molecule and one nitrogenous base out of adenine, guanine, thymine and cytosine. Uracil is never a part of nucleotide of DNA. It is present in RNA.

Detailed explanation-2: -How Nucleotides Are Constructed. A nucleotide consists of base, sugar, and phosphate group.

Detailed explanation-3: -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-4: -Answer and Explanation: The correct answer is C. Amino acid. An amino acid is not a component of nucleotide.

Detailed explanation-5: -The three components of a nucleotide are nitrogenous base, sugar and phosphate.

There is 1 question to complete.