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Biomolecules

Question

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How does DNA differ from RNA with respect to (a) Sugar and (b) base residues?

Solution

Deoxyribonucleic acid (DNA) and ribonucleic acid
(RNA).In DNA molecules, the sugar moiety is β-D-2-deoxyribose whereas, in RNA molecule, it is β-D-ribose.

DNA contains four bases viz. adenine (A), guanine (G), cytosine (C) and thymine (T). RNA also contains four bases, the first three bases are same as in DNA but the fourth one is uracil (U).

Some More Questions From Biomolecules Chapter

The melting points and solubility of water of amino acids are generally higher than that of the corresponding halo acids. Explain.

Where does the water present in the egg go after the boiling the egg?

Why cannot vitamin C be stored in our body?

What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?

When RNA is hydrolysed, there is no relationship among the quantities of different bases obtained. What does this fact suggest about the structure of RNA?

What is a biomoiecule?

Define carbohydrates.

Give one example each of (i) Reducing sugar and (ii) Non-reducing sugar.

Name the anomers of glucose.

State two characteristics of monosaccharides.

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