A deletion of the operator would make the tryptophan oporon exhibit constitutive

Question

A deletion of the operator would make the tryptophan oporon exhibit constitutive expression. Nondisjunction can result in The human metallothionein gene has several different enhancers and response elements in its regulatory region. Transcription could be activated by regulatory protein binding to any of these regions. Mutations at which of the following promoter or promoter-proximal sequences will affect the location of the transcription start site? What is the difference between a promoter proximal element and an enhancer? Eukaryotic transcription initiation often requires that chromatin structure be remodeled to allow RNA Polymerase and other regulatory proteins access to the promoter. What chemical modification allows the nucleosome to be pushed aside?

Explanation / Answer

9. A

10. A

11. E

12. A

13. C

14. B

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