Q. 71
Write the structures of fragments produced on complete hydrolysis of DNA. How are they linked in DNA molecule? Draw a diagram to show pairing of nucleotide bases in double helix of DNA.
Answer :
The complete hydrolysis of DNA molecule yields a pentose sugar, phosphoric acid and nitrogen containing heterocyclic biological compound called bases.
Ribose
Deoxyribose
Phosphoric acid
The four nitrogenous bases produced are – Adenine(A), Guanine(G), Cytosine(C), Thymine(T).
Adenine
Guanine
Cytosine
Thymine
Adenine-Thymine pairing
Guanine-Cytosine pairing
Pairing of nucleotides in a DNA molecule
Double helical structure of DNA
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