A) Organ transplantation
B) Sex determination
C) Forensic science
D) Genetic engineering
Correct Answer: C
Solution :
DNA fingerprinting involves identifying the differences in some specific regions in the DNA sequence known as repetitive DNA, because in these sequences, a small stretch of DNA is repeated many times. These repetitive DNA are separated from the bulk genomic DNA as different peaks during density gradient centrifugation. The bulk DNA forms a major peak and the other small peaks are referred to as satellite DNA. Depending on the base composition (A : T rich or G : C rich), length of segment and the number of repetitive units, the satellite DNA is classified into many categories, such as micro-satellites, mini-satellites, etc.
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