With the advent of DNA technology tool is available to identify a criminal or to the real parents. (a) Name this technique. (b) Write the missing steps in the procedure given below. Three of these steps are mentioned in the flow chart. (i) Extraction of DNA from the cells (ii) .......(iii) DNA is cut into fragments by restriction enzyme (iv) ..... (v)...... (vi). ....(vii) Autoradiography

Explanation

(a) DNA finger printing
(b) (ii) Amplification by polymerase chain reaction
(iv) Separation of DNA fragments by gel electrophoresis
(v) Southern blotting
(vi) Hybridization using probe-fragment