Using DNA to Identify People
Edited BY: Alina Fischman
Edit Date: 2017-05-29 21:11:39

DNA can be used to tell people apart because humans differ from each other based on either their DNA sequences or the lengths of repeated regions of DNA. Length differences are typically used in forensics and paternity testing. The technique of gel electrophoresis separates DNA by size, thus allowing people to be identified based on analyzing the lengths of their DNA.

Watch the following video and afterward answer this question:  Who is the child's biological father?

Question Created By: Alina Fischman
Creation Date: 2017-05-29 21:09:55
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