Strings 2008 2 5: Difference between revisions
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== How can sequences change == | == How can sequences change == | ||
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|Discovery question: | |||
Imagine you have to type [http://en.wikipedia.org/wiki/The_quick_brown_fox_jumps_over_the_lazy_dog 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. | |||
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Revision as of 03:27, 10 January 2008
Similarity of sequences
In bioinformatic reality finding exact matches between sequences is not enough. Biological sequences may not be perfectly identical because of
- experimental errors that may have occurred in the determination of the sequence,
- 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. |
