Extra Credit - DNA Forensics, Ancestry, and the Golden State Killer-Teresa Strecker

In this extra credit exercise you will learn about a new and different tactic law enforcement has taken to identify a prime suspect in a cold case.  First, it is important for you to briefly familiarize yourself with how DNA is being used to identify close relatives using Ancestry.com and 23andme.  Please watch this short video which is the best short explanation of 23andme available (plus it is entertaining):

Now that you have learned what you need to know about how SNPs are used at 23andme, and you have completed your lab on DNA fingerprinting using VNTRs (and STRs), please watch the following video and answer the quiz questions.

[One thing that needs to be clarified from the video is that investigators entered crime-scene DNA data into GEDmatch, and more than 100 subscribers matched as a distant relative of the killer.  Investigators then contacted one or two people at a time as they tried to find, from these distant relatives, a pool of people who could have been the Golden State Killer of the 1970's and 80's (when the crime spree occurred).]

Here is the link to GEDmatch:  https://www.gedmatch.com

Completion of this extra credit exercise with an 80% or better score by the deadline of May 3, 2021 at 5pm, will add 1 percentage point to your final course grade.