Which is the basis of genetic mapping of human genome as well as DNA fingerprinting?

Which is the basis of genetic mapping of human genome as well as DNA fingerprinting?
  1. Polymorphism in DNA sequence
  2. Single nucleotide polymorphism
  3. Polymorphism in hnRNA sequence
  4. Polymorphism in RNA sequence

Solution

Allelic sequence variation is described as a DNA polymorphism if more than one variant (allele) at a locus occurs in the human population with a frequency greater than 0.01. If an inheritable mutation is observed in a population at the high frequency it is referred to as DNA polymorphism. Polymorphism in DNA sequence is the basis of genetic mapping of human genome as well as of DNA fingerprinting.

Asked in: NEET 2020 (Phase 2)

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