Question

Form the given options; select the CORRECT sequence in DNA fingerprinting.

Options

• DNA fragmentation → DNA isolation→ Electrophoresis → Hybridization

• DNA isolation → DNA fragmentation → Electrophoresis → Hybridization

• Hybridization → DNA fragmentation → DNA isolation → Electrophoresis

• Electrophoresis → DNA isolation → DNA fragmentation → Hybridization

Answer 1

DNA isolation → DNA fragmentation → Electrophoresis → Hybridization

Explanation:

DNA's Technique Alec Jeffery has created a finger printing. The method begins with the isolation of a DNA sample, which is then followed by PCR amplification if the sample is too small. Restriction enzymes are then used to tragment the DNA. These fragments are subsequently separated by electrophoresis and radio isotopes are used to hybridise them.