Why is DNA profiling used?
It is used as a forensic technique in criminal investigations. It is used in parentage testing, to establish immigration eligibility, and in genealogical and medical research. It is also used in the study of populations in zoology, botany, and agriculture.
Specifically DNA profiling may be used to confirm the biological parents or siblings of an individual.
It could be used to find out if the twins are paternal or maternal.
It helps in the field of criminal justice by identifying suspects from evidence found at the crime scene.