Present a detailed description of the actions of the regulatory proteins in inducible and repressible enzyme systems
What will be an ideal response?
Inducible system: The repressor is normally active, but the inducer inactivates the repressor. Repressible system: The repressor is inactive but is activated by the corepressor. Active repressors turn off transcription.
You might also like to view...
A sea squirt uses its ____ for food collection and gas exchange
a. siphon b. pharynx c. tunic d. mantle e. radula
This summer, you are returning to the research station in Costa Rica to follow up on the population of butterflies you have been studying. You are disappointed to find that there are fewer this year than last. In fact, at dinner your friends studying frogs and birds are complaining about the same thing. What type of influence do you suspect?
A. a density-independent effect like an introduced predator B. a density-dependent effect like environmental disruption C. a density-independent effect like environmental disruption D. a density-dependent effect like an introduced predator Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about factors that affect many different populations of organisms? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following consists of a hollow ball of cells?
a. gastrula b. morula c. blastula d. blastocoel e. zygote
Of all the different codons that exist, three of them _____________.
A. are involved in mutations B. give the signal to stop translation C. cannot be copied D. do not specify a particular amino acid and are signals to begin translation E. do not specify a particular amino acid and are signals to terminate translation