Exercise 1

The couplings between base units of $\mathrm{DNA}$ is through:

In a protein molecule various amino acids are linked together by

Among the $\mathrm{\alpha }$ -amino acids - threonine, tyrosine, methionine, arginine and tryptophan, those which contain an aromatic group in their side chain are

If $\alpha -$$\mathrm{D}-$glucose is dissolved in water and kept for a few hours, the major constituent(s) present in the solution is (are)

Transport of oxygen is an important function of blood. Partial pressure of ${\mathrm{O}}_2$ is highest and lowest, respectively in:

Proteins present inside the cell membrane are stabilised by:

When a person suffers from typhoid, the metabolic process stimulates in the body to fight against this disease, is synthesis of:

A person suffered from injury and there was considerable delay in clotting of blood. It may be due to the deficiency of