What Characteristic of Short Tandem Repeats (STRs)makes Them Useful for DNA

Multiple Choice

What characteristic of short tandem repeats (STRs) makes them useful for DNA fingerprinting?

A) The number of repeats varies widely from person to person or animal to animal.
B) The sequence of DNA that is repeated varies significantly from individual to individual.
C) The sequence variation is acted upon differently by natural selection in different environments.
D) Every racial and ethnic group has inherited different short tandem repeats.
E) Each STR can be correlated with a specific disease.