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Q.

In DNA fingerprinting protocol, VNTR probes are used during

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a

restriction digestion 

b

blotting

c

electrophoresis

d

hybridisation

answer is A.

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Detailed Solution

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To analyse VNTRs in DNA fingerprinting, VNTR probes are used. A VNTR probe is a piece of DNA that is complementary to a specific VNTR repeat sequence. VNTR probes are labelled with a fluorescent dye or a radioisotope, which allows them to be detected and quantified.
Hybridisation involves adding the VNTR probes to the DNA sample and allowing them to bind to complementary sequences within the sample. The bound probes can then be detected and quantified, which allows researchers to determine the number of VNTR repeats present in the sample.
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