why is making cells competent essential for biotechnology experiments?
List any two ways by which this can be achieved.

State any two ways by which food can be preserved.

Give any two ways by which diarrhoea can be controlled.

Why must a cell be made 'competent' in biotechnology experiments? How does calcium ion help in doing so?

List any four ways in which the antibiotics are being used.

List any two factors which influence growth.

What is rancidity ? Mention any two ways by which rancidity can be prevented.

(a) Why must a cell made 'competent' in biotechnology experiments ? How does calcium ion help in doing so ? (b) State the role of 'biolistic gun' in biotechnology experiments.

(a) Why must a cell made 'competent' in biotechnology experiments? How does calcium ion help in doing so? (b) State the role of 'biolistic gun' in biotechnology experiments.

List the ways in which you can an object.