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10 Cards in this Set
- Front
- Back
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Wobble Rules
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Exceptions to base pairing rules
G --> U/C C --> G A --> U U --> G/A I --> A/U/C |
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Transitions
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A pyrimidine is changed to another pyrimidine or purine to a purine
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Transversions
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A pyrimidine is changed to purine, or vise versa
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Silent mutation
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Point mutation that doesn't change encoded amino acid
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Missense mutation
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Causes a change in the encoded amino acid. Can be neutral if it doesn't alter folding of formation of protein.
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Nonsense mutation
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An amino acid encoding codon is change to a STOP codon
ex. sickle cell anemia |
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Frameshift mutation
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Causes mRNA reading frame to be shifted. (addition or deletion of nucleotide.)
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Operon
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A cluster of genes of related function under the control of some regulatory elements.
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Inducible operon
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OFF until it is needed. Expression occurs due to binding of an effector to repressor
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Repressible operon
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ON until it is no longer needed. Expression is repressed due to binding of an effector to repressor.
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