Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by (a) base-sugar-phosphate (b) base-sugar-OH (c) (base-sugar-phosphate)n (d) sugar-phosphate.

Nucleotides are building blocks of nucleic acids.
Each nucleotide is a composite molecule formed by
(a) base-sugar-phosphate
(b) base-sugar-OH
(c) (base-sugar-phosphate)n
(d) sugar-phosphate.
by

1 Answer

Answer :

(a) base-sugar-phosphate
by

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An enzyme which acts as allosteric regulator and sensitive to both phosphate concentration and to the purine nucleotides is (A) PRPP synthetase (B) PRPP glutamyl midotransferase (C) HGPR Tase (D) Formyl transferase

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Buffer solutions have constant acidity and alkalinity because: (1) they have fixed value of pH (2) these give unionised acid or base on reaction with added acid or alkali (3) acids and alkalies in these solutions are shielded from attack by other ions (4) they have large excess of H+ or OH– ions

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The major determinant of the overall rate of denovo purine nucleotide biosynthesis is the concentration of (A) 5-phosphoribosyl 1-pyrophosphate (B) 5-phospho β-D-ribosylamine (C) Glycinamide ribosyl-5-phosphate (D) Formylglycinamide ribosyl-5-phosphate

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The carbon of the pentose in ester linkage with the phosphate in a nucleotide structure is (A) C1 (B) C3 (C) C4 (D) C5

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Last Answer : Answer : D

Deoxyribose sugar + Nitrogenous base + phosphate group (PO2 )

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