The Interrogation of Mr. DNA, Part 3 of 3: Detection

Cracked Science

Previously, on The Interrogation of Mr. DNA:

A woman, found dead in her apartment. Our lab rat, Greg, has managed to amplify 13 repeats in both the victim’s sample and an unknown sample, potentially from her murderer. These repeats differ in length between individuals. Can Greg count them and compare them? Will he accomplish this in time? And why will we travel to Alaska to meet a man who can apparently walk through walls? The answers to these questions (and a trip through Rick Santorum’s annals) in the exciting conclusion to The Interrogation of Mr. DNA.

In order for us to understand how Greg can measure DNA repeats, we need to understand what Jell-O really is.

Bear with me.

Jell-O is made of gelatin, a form of collagen derived from the skin, bones, and connective tissues of animals such as cows, chickens, and pigs.

Bet you won’t look at…

View original post 2,126 more words

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