Physics NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 2 PCB MCQ (Single Correct)

Detection of mutation in genes in the suspected cancer patients can be done by

A
RNAi and gel electrophoresis
B
Recombinant DNA technology
C
PCR and probe
D
Double stranded DNA or RNA tagged with a radioactive molecule

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The correct answer is:
C

The genetic material of the normal gene is amplified by PCR. A single stranded DNA or RNA tagged with a radioactive molecules, now called as probe is allowed to hybridise to its complementary DNA in a clone of cells followed by detection using autoradiography. The probe will not have any complementarity for mutated gene.

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