What is it that forms the basis of DNA Fingerprinting?

1. The relative difference in the DNA occurrence in blood, skin and saliva
2. The relative amount of DNA in the ridges and grooves of the fingerprints
3. Satellite DNA occurs as highly repeated short DNA segments
4. The relative proportions of purines and pyrimidines in DNA

Subtopic:  DNA Fingerprinting |
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AIPMT - 2012
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Consider the given two statements:
Assertion (A)​​​​​: The repetitive satellite DNA sequences form the basis of DNA fingerprinting.
Reason (R)​​​​: These sequences normally do not code for any proteins, but they form a large portion of human genome.
   
1. Both (A) and (R) ​​​​​​​​​​​​​​are True and (R) ​​​​​​​​​​​​​​correctly explains (A)​​​​​​​​​​.
2. (A) ​​​​​​​​​​​​​​is True but (R) ​​​​​​​​​​​​​​is False.
3. Both (A) ​​​​​​​​​​​​​​and (R) ​​​​​​​​​​​​​​are True but (R) ​​​​​​​​​​​​​​does not correctly explain (A)​​​​​​​​​​​​​.
4. (A) ​​​​​​​​​​​​​​is False but (R) ​​​​​​​is True.
Subtopic:  DNA Fingerprinting |
From NCERT
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