Debate and discussion of any biological questions not pertaining to a particular topic.
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My sample is treated in 3 ways: No inducer, with lactose , with IPTG. ONPG is used in all sample to determine the beta galactosidase. I know that both lactose and IPTG can associate with lac repressor and cause expression. If the result of these three treatment only with IPTG appears yellow, can you deduce lac I and lac O which is functioning or not?
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