Nucleic Acids - Single MCQs (Page 26)

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Q251. Transcription of structural genes of lac operon is prevented by binding of the r...Q252. Trancription of z, y and a genes of lac operon is prevented by?...Q253. RNA polymerase holoenzyme binds to lac operon at the following site?...Q254. The regulatory i gene of lac operon?...Q255. Lac operon is a cluster of?...Q256. Lac operon is a cluster of genes present in?...Q257. Proteins which interact with DNA and affect the rate of transcription possess th...Q258. Amplification of dihydrofolate reductase gene may be brought about by?...Q259. Enhancer elements have all the following features except?...Q260. trans-acting factors include?...