Nucleotide are building blocks of nucleic acids, nucleotide is a composite molecule formed by
(base-sugar-phosphate)n
base-sugar-OH
base-sugar-phosphate
sugar-phosphate
C.
base-sugar-phosphate
Nucleotides are the building blocks of nucleic acids (DNA/ RNA). A single nucleotide comprises of-
(i) phosphate molecule
(ii) a five carbon sugar (either ribose or deoxyribose)
(iii) a purine (adenine or guanine) or a pyrimidine (thymine or cytosine or uracil) nitrogenous base.
Nucleoside = Base + Sugar
Nucleotide = Base + Sugar + Phosphate
Which of the following vitamins is water soluble as well as an antioxidant?
Vitamin- B1
Vitamin-A
Vitamin-D
Vitamin-C
Which compound has a very important role in prebiotic evolution?
Sulphur dioxide
Nitric oxide
Methane
Sulphur trioxide
Which one is component of Ornithine cycle?
Ornithine, citrulline and alanine
Ornithine, citrulline and arginine
Amino acids are not used
Ornithine, citrulline and fumaric acid
Which one is component of Ornithine cycle?
Ornithine, citrulline and alanine
Ornithine, citrulline and arginine
Amino acid are not used
Ornithine, citrulline and fumaric acid
