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Question

Alec Jeffreys developed the DNA finger printing technique. The probe he used was?

A
Ribozyme
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B
Sex chromosomes
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C
SNP
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D
VNTR
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E
rDNA
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Solution

The correct option is D VNTR
Dr Jeffreys discovered that repetitive patterns of DNA, known as Variable Number of Tandem Repeats (VNTRs), were present in all human beings but they varied in length for each individual. He said that this variation could be used to establish the identity of a person and he named his technique genetic fingerprinting. Dr Jeffreys demonstrated that a genetic fingerprint is specific to each individual and the pattern does not belong to any other person on earth except for identical twins.
so, the correct answer is 'VNTR'.

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