DNA fingerprinting helps in identification of individuals based on variations in the

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amount of DNA in blood, skin, and saliva

proportion of purines and pyrimidines

number of repeats in VNTR

single nucleotide polymorphisms

answer is C.

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Detailed Solution

Variable number tandem repeats (VNTRs) are a type of DNA polymorphism that are used in DNA fingerprinting. VNTRs are short sequences of DNA that are repeated in tandem a variable number of times within a particular locus. The number of repeats can vary from person to person, which means that individuals can have different numbers of VNTRs within a particular gene. VNTRs are used in DNA fingerprinting because they can be used to create unique patterns of DNA that can be used to distinguish one individual from another.

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