A) hydrocarbons
B) polynucleosides
C) polynucleotides
D) histones
Correct Answer: C
Solution :
Gene is fundamental, physical and functional unit of heredity, which carries information from one generation to the next. Genes are composed of polynucleotides or DNA molecules. A nucleotide is made up of a nitrogenous base, a phosphate group and a sugar. A nucleoside is made up of nitrogenous base and a sugar molecule. Histones are basic protein associated with eukaryotic DNA to form chromosomes. Hydrocarbons are organic substances made up of hydrogen and carbon like petrol, benzene etc.
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