Zoology - Biotechnology - Principles and Processes Question with Solution | TestHub

DNA of human is almost the same for all individuals but very small amount that differs from person to person and that is used by the forensic scientists analyze to identify people. These differences are called polymorphisms (many forms) and are the key of DNA typing. It consist of variation in the length of DNA at specific loci called as restricted fragment. It is most important segment for DNA test made up of short repetitive nucleotide sequences, these are called VNTRs (variable number of tandem repeat). These sequences do not code for any protein and they are junk DNA.