Short Answer TypeWhat do you mean understand by tertiary structure of proteins? Mention the forces involved informing these structures.
Long Answer TypeName the product obtained on complete hydrolysis of DNA. Enumerate the structural differences between DNA and RNA. In what way is a nucleotide different from a nucleoside? Illustrate with examples.
The products of complete hydrolysis of DNA are:
(i) a pentose sugar
(ii) two types of heterocyclic nitrogenous bases.
(iii) phosphoric acid
The structural differences between DNA and RNA are:
(i) DNA has deoxyribose while RNA has ribose sugar.
(ii) DNA contains thymine and RNA has uracil.
(iii) DNA is double stranded while RNA is single stranded.
Nucleosides: The N-glycosides of purine or pyrimidine bases with pentose sugars are known as nucleosides.
Nucleotides: A nucleotide is a phosphate ester of nucleoside and consists of a purine or pyrimidine base, the 5-carbon sugar and one or more phosphate groups.
Nitrogen Base + Sugar + Phosphate = Nucleotide
Short Answer TypeThe tertiary structure of many proteins dissolved in water is disrupted by heating above 80°C, but primary structure is unaffected. Explain.
Switch
