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3 Cards in this Set
- Front
- Back
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Types of Gene Changes
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(1) horizontal gene transfer (exchanging genes b/w organisms)
(2) mutations (3) deletions (4) insertions |
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Mechanisms of
Horizontal Gene Transfer |
exchanging genes between organisms
(1) transformation (2) conjugation (3) transduction |
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Transformation
(gene transfer) |
competent cell picks up free DNA (ex. from dead cell) from the environment
naturally competent (Bacillus) made competent: > salt treatment (neutralize charge so DNA is not repelled) > electroporation (electrical shock opens pores in cell membrane) * free DNA does not replicate, must be incorporated or is degraded |
