Question

Select the correct combination of statements for DNA fingerprinting.
(i) It is ELISA based technique.
(ii) It is PCR based technique.
(iii) It is used by forensic scientists.
(iv) It is based on the fingerprint of the individual.
(v) It can be used for testing paternity.

• A. i, ii, iii
• B. ii, iii, v
• C. i, iv, v
• D. i, iii, iv

Answer 1

The correct option is B ii, iii, v

I. ELISA is an antigen-antibody reaction which is used in the confirmation of HIV-AIDS.

II. PCR or Polymerase Chain Reaction is a technique used to amplify or clone DNA. PCR is used in DNA fingerprinting so that a small amount of DNA can be cloned into large amounts.

III. DNA fingerprinting is used by forensic scientists for identification of criminals.

IV. DNA fingerprinting is based on short tandem repeats of nucleotide sequences that are unique in every person.

V. DNA fingerprinting is used for paternity test for determining the biological father of the child.

Hence, correct answers are ii, iii and v. So, the correct answer is 'ii, iii, v'.