Different persons have different DNA fingerprints because
A) they have completely different kinds of VNTRs.
B) they have different numbers of the same VNTR.
C) PCR generates some sequences more than other sequences.
D) restriction enzymes may not cut some VNTRs if adjacent to different DNA sequences.

Question

Quizplus · Accepted Answer

DNA fingerprints are created by analyzing the variability in the length and number of VNTRs (variable number tandem repeats) in an individual's DNA. While different individuals may have the same VNTRs, they will have different numbers of the same VNTRs. This leads to variations in the length of the VNTR regions when they are cut by restriction enzymes and analyzed by gel electrophoresis, resulting in unique DNA fingerprints.

Different Persons Have Different DNA Fingerprints Because