Strings 2008 2 5

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Revision as of 03:29, 10 January 2008 by ThomasHuber (talk | contribs)
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Similarity of sequences

In bioinformatic reality finding exact matches between sequences is not enough. Biological sequences may not be perfectly identical because of

  1. experimental errors that may have occurred in the determination of the sequence,
  2. mutations Sequences may have changed in course of evolution

Further, biologist more often want to find other sequences that are similar to their sequence of interest then to re-identify identical sequences.


How can sequences change

Discovery question:

Imagine you have to type The quick brown fox jumps over the lazy dog 500 times on a type writer. What sort of changes in the text between the 500 versions are you likely to observe? Compare these changes with the changes you would expect comparing DNA sequences.


goto How can biological sequences change


--ThomasHuber 14:29, 10 January 2008 (EST)