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JIPMER 2007
Exam
JIPMER
Year
2007
Subject
Zoology
Chapter
Molecular Basis of Inheritance

JIPMER 2007 · Zoology · Molecular Basis of Inheritance

Nucleotide are building blocks of nucleic acids, nucleotide is a...

Nucleotide are building blocks of nucleic acids, nucleotide is a composite molecule formed by

Options

  1. A(base-sugar-phosphate)n
  2. Bbase-sugar-OH
  3. Cbase-sugar-phosphate
  4. Dsugar-phosphate

Correct answer

C. base-sugar-phosphate

Step-by-step solution

Nucleotides are the building blocks of nucleic acids (DNA and RNA). A single nucleotide is composed of a phosphate molecule, a five carbon sugar (either ribose or deoxyribose) and a purine (adenine or guanine) or a pyrimidine (thymine or cytosine or uracil) nitrogenous base. Nucleoside = Base + Sugar Nucleotide = Base + Sugar + Phosphate
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