Image of outputs from DNA sequencing: automated (top) and manual (bottom).
Early sequencers used four different reactions to determine the placement of each of DNA's four bases - known as A, C, T & G - in the sequence.
A DNA fingerprint is a profile of a person's inherited DNA variations, specifically repeated sequences
The finished sequence of the human genome was published in April, 2003.
Multiple mutations at the same position in a DNA sequence can confound calculations of evolutionary time.
Walter Gilbert's group tried to isolate the human insulin DNA sequence using the rat insulin DNA sequence.
Synthesizing human insulin using recombinant DNA, 3D animation with no audio
Techniques to read the sequence of DNA, letter by letter, have been available since the 1970s. However, the massive task of sequencing the three billion basepairs of the human genome required machines that could read and interpret the data.
DNA sequencing interactive game. Reconstruct a piece of DNA using the fragments above. We've given you the first piece. You do the rest...
Two sequencing techniques were developed independently in the 1970s. The method developed by Fred Sanger used chemically altered "dideoxy" bases to terminate newly synthesized DNA fragments at specific bases (either A, C, T, or G). These fragments are th