DNA sequencing

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DNA sequencing results

DNA sequencing results may be viewed on a computer screen as a set of coloured peaks. These peaks also indicate the order of nucleotides in the constructed copies, and the coloured graph is interpreted in the same way as the coloured bands in the electrophoresis results

Term: 2014
Published: March 28, 2014
Revised: March 28, 2014

 

What is DNA sequencing?

The biological information of DNA is contained in its nucleotide sequence. DNA sequencing is the experimental process of determining the exact order of nucleotide bases (adenine, guanine, cytosine, and thymine) in a DNA molecule. In simple terms, the process involves making many copies of the base sequence that match the code of a single strand of DNA. These copies vary in length by one nucleotide; the shortest is only one nucleotide long, and the longest matches the entire DNA strand.

About The Instructor

Prof Marinda Oosthuizen

Prof Marinda Oosthuizen

  • BSc, MSc, PhD (Pretoria)
  • Prof Marinda Oosthuizen is an Associate Professor in the Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, South Africa.
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This Work, DNA sequencing, by Prof Marinda Oosthuizen is licensed under a Creative Commons Attribution license.