Strings 2008 2 6: Difference between revisions
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== How can biological sequences change == | == How can biological sequences change? == | ||
1. Point mutation or substitution - one base replaced by another | 1. Point mutation or substitution - one base replaced by another | ||
[[Image:Mutation1.png|point mutation]] | |||
2. "Indel" | 2. "Indel" | ||
2.1 Deletion - loss of one or more adjacent bases | 2.1 Deletion - loss of one or more adjacent bases | ||
[[Image:Mutation2.png|deletion]] | |||
2.2 Insertion - adding one or more bases | 2.2 Insertion - adding one or more bases | ||
[[Image:Mutation3.png|insertion]] | |||
3. Large insertions or deletions | 3. Large insertions or deletions | ||
* Tandem repeats of genes | |||
* Transposable elements | |||
4. [http://en.wikipedia.org/wiki/Genetic_recombination Recombination] - crossover and gene conversion | |||
(these are like cut-and-paste editing between two very similar texts) | |||
[[Image:Mutation4.png|recombination]] | |||
{| border="1" | |||
|Discovery questions: | |||
* Discuss what effects these changes in the DNA potentially have in the protein produce. | |||
|} | |||
For answer and examples see [http://en.wikipedia.org/wiki/Point_mutation here] | |||
[[Strings_2008_2_7 | goto Evolutionary changes]] | |||
--[[User:ThomasHuber|ThomasHuber]] 14:56, 10 January 2008 (EST) | |||
Latest revision as of 04:49, 16 January 2008
How can biological sequences change?
1. Point mutation or substitution - one base replaced by another
2. "Indel"
2.1 Deletion - loss of one or more adjacent bases
2.2 Insertion - adding one or more bases
3. Large insertions or deletions
- Tandem repeats of genes
- Transposable elements
4. Recombination - crossover and gene conversion
(these are like cut-and-paste editing between two very similar texts)
Discovery questions:
|
For answer and examples see here
--ThomasHuber 14:56, 10 January 2008 (EST)