ls7a w6 lac operon

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9 Terms

1
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polycystronic mrna

mRNA that can create multiple different proteins through alternative splicing-- splicing different exons

2
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operon

region of dna that consists of everything that starts transcription: operator, promoter, signal sequences

3
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trans acting

acting on either DNA or chromosome

4
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negative control

gene is off until activated

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positive control

gene is activated until something turns it off

6
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what does laci gene create?

repressor protein

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what does lacz create

Beta galactosidase

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what does the repressor protein bind to in lac operon

operator

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what does b gal do

breaks down lactose into glucose