Biology 2581B Lecture Notes - Lecture 7: Exonuclease, Cytosine, Penicillin
10 May 2016
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Overview: mutation: a change in dna sequence. The change can be inherited down the generation from individuals to individuals (germ line mutations) Ex: color morphology for animals and plants. Result: the normal medium contains all growing yeast colonies. The medium lacking speci c nutrients & components = some yeast colonies are growing, some died. Analysis: can determine what parts of the medium are crucial to yeast colony growth. Mutant: an organism which experiences a change in dna sequence. Wild type: considered to be the norm, more frequent, observed rst. Mutant: displays a negative effect (not always, depending on the environment, forward mutation: a mutation that changes a wild-type allele of a gene to a different allele. The resulting novel mutant allele can be either recessive or dominant to the original wild type. A+ (designated originally allele) a (forward mutation: reverse mutation (reversion): a mutation that causes a novel mutant allele to revert back to wild type, characteristics of mutations.
