Результаты поиска по запросу "an operator in the operon model is":

  1. Operon - Wikipedia

    • The activated repressor protein binds to the operator and prevents transcription. The trp operon, involved in the synthesis of tryptophan (which
    • The lac operon of the model bacterium Escherichia coli was the first operon to be discovered and provides a typical example of operon function.

    en.wikipedia.org

  2. Operon model | definition of operon model by Medical dictionary

    • Looking for online definition of operon model in the Medical Dictionary? operon model explanation free.
    • The model has the following components: an operon consisting of at least one structural gene coding for primary enzyme structure, and two regulatory elements, one called the operator and the...

    medical-dictionary.thefreedictionary.com

  3. Molecular Genetics of Prokaryotes Problem Set | The Operon Model

    • Tutorial. The Operon Model. An operon is a coordinately regulated unit of transcription in bacteria.
    • The lac repressor, encoded by the lac I gene, is the regulatory protein of the lac operon. 2. An operator.

    www.biology.arizona.edu

  4. Control of Gene Expression in Prokaryotes

    • 2. Consider the operon in Model 1. Other than the gene that regulates the operon, how many genes are contained within the operon? 3. In Model 1, where on the DNA strand does RNA polymerase bind to start transcription, the promoter, the operator or the terminator?

    winegarbiology.weebly.com

  5. lac operon - Wikipedia

    • The lac operon (lactose operon) is an operon required for the transport and metabolism of lactose in Escherichia coli and many other enteric bacteria.
    • In the current model, lac repressor is bound simultaneously to both the main operator O1 and to either O2 or O3.

    en.wikipedia.org

  6. an operator in the operon model is

    • The lac operon of the model bacterium Escherichia coli was the first operon to be discovered and provides a typical example of operon function.
    • An operator, which is a component of the operon model, is defined as.

    jylyoi.kz

  7. An operator in the operon model is? | Yahoo Answers

    The regulatory portion of the operon which is switched on and off in the presence or absence of repressor proteins.

    answers.yahoo.com

  8. Lac Operon (Molecular Biology)

    • The lac operon looked so perfect that a function for its two additional operator-like sequences was not considered for almost thirty years.
    • Second, the dominance of wild type I+ over constitutive I-Lac repressor mutants was easily explained by the operon model.

    what-when-how.com

  9. An operator in the operon model is? | Yahoo Answers

    A. An operator is a DNA sequence that binds to a repressor protein if certain conditions exist, turning expression of the operon off. Operators DO NOT bind to activator proteins. These bind to sequences around the promoter.

    answers.yahoo.com

  10. Worksheet – Control Mechanism (lac & trp operons)

    • Be able to explain how these operon models work when you show your model. Be able to explain the following: positive regulation, negative regulation, repressible operon, inducible operon, operon, operator, repressor protein, promoter, corepressor and inducer.

    www.mr-shopkinsbio.org