why is it necessary to use more than one genetic loci to obtain a truly unique...

Question

Question

why is it necessary to use more than one genetic loci to obtain a truly unique DNA fingerprint from each person?

science biology

Answer 1

Answer #1

Solution

because

Multilocus DNA fingerprinting reveals high rate of heritable genetic mutation.
The multilocus DNA probes are much more efficient than unilocus systems with respect to the yield of genetic information, because a large number of loci included in multilocus fingerprinting.
the resulting DNA fingerprints are therefore derived from independent sets of hypervariable loci so The level of allelism and linkage between different hypervariable DNA fragments is also low.
The Variation between the DNA fingerprints of different individuals indicates that the probability of chance identity is very low.
So it is necessary to use more than one genetic loci to obtain a truly unique DNA fingerprint from each person.

Answer 2

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