The fbi uses str (short tandem repeat) analysis to identify criminals, and the fbi stores the information in a database. how many regions, or loci, of dna are used for str analysis?

a.) 5
b.) 13
c.) 26
d.) 30

Short Tandem Repeat (STR) is a molecular biology method used as a tool in forensic analysis. It evaluates specific STR regions found on nuclear DNA. STRs are short sequences of DNA, normally of length 2-5 base pairs, that are repeated numerous times in a head-tail manner. CODIS is the Combined DNA Index System of FBI that has 13 regions, or loci of DNA.

Tell the option first