A substance acts as an inducer to the synthesis of

This preview shows page 21 - 23 out of 25 pages.

A substance acts as an “inducer” to the synthesis of enzymes. Both repressors and activators bind DNA. Repressors bind the operator, downstream the promotor. (blocks RNA Pol function) Activators bind activator sites and promotes RNA pol binding
Image of page 21

Subscribe to view the full document.

Operon Model the sequence of bases coding for one or more polypeptides along with the promoter and operator or activator binding sites the best studied control system is the lactose operon ( lac operon) the lac operon is an example of negative transcriptional control of inducible genes
Image of page 22
lac Operons lacl = produces the lac repressor CAP site: catabolite repression, global control site operator: site for lac repressor binding
Image of page 23

You've reached the end of your free preview.

Want to read all 25 pages?

{[ snackBarMessage ]}

Get FREE access by uploading your study materials

Upload your study materials now and get free access to over 25 million documents.

Upload now for FREE access Or pay now for instant access
Christopher Reinemann
"Before using Course Hero my grade was at 78%. By the end of the semester my grade was at 90%. I could not have done it without all the class material I found."
— Christopher R., University of Rhode Island '15, Course Hero Intern

Ask a question for free

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