The possibility of extensive genetic testing raises questions about how personal genetic information should be used. For example, should employers or potential employers have access to such information?

The goal of DNA fingerprinting is:

Which of the following characteristics of short tandem repeats (STRs) makes it useful for DNA fingerprinting?

The gel below shows a region of STRs from a DNA sample taken from a crime scene. It also shows the same region of STRs from 4 suspects involved in the case. Which suspect' DNA was found at the crime scene?