molecular help
19. What is the natural inducer of the lacoperon? 20 which chemical binds RNA polymerase and prevents it from binding to DNA? Record and colleagues used this chemical to block reinitiation of transcription of the lac operon after RNA polymerase dissociated from DNA. 21. For comparison to the data from the experiment Record and colleagues performed with the chemical that is the answer to question #20, which protein prevents RNA polymerase from bind to DNA?
19. Allolactose is natural inducer of lac operon.
20.The repressor protein coded by lacl gene binds RNA polymerase and prevent it from binding to the promoter DNA.
21. Lac repressor protein is a DNA binding protein.
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