{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Study Questions 16-19

Study Questions 16-19 - Study Questions 16-19 1 You have...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Study Questions 16-19 1. You have discovered base changes in the promoter region of the operon in a bacterial chromosome. Would you expect these changes to act in trans on another copy of the operon? Explain your reasoning. 2. What are cis- elements? What are trans- factors? Give an example from the Trp operon (or form the Ara-operon). 3. Draw the diagram of the lac operon that illustrates negative control (be careful here and think about the complete picture!!!!!). 4. You have isolated a protein that binds to DNA in the region upstream of the promoter sequence of the gene of interest. If this is a positive regulator (activator) which would be true: A) Loss of function mutation in the gene encoding this DNA binding protein would cause constitutive expression B) Loss of function mutation in the gene encoding this DNA binding protein would result in lower or no expression. Explain your reasoning. 5. Discuss why are lac O c mutants cis-acting.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern