How does active CAP induce expression of the genes of the lactose operon?
What will be an ideal response?
it stimulates the binding of RNA polymerase to the promoter
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A tunicate looks like a sponge. How could a biologist distinguish it from a member of the Porifera?
A. Tunicates do not filter feed. B. Only tunicates produce gametes. C. Unlike tunicates, sponges are symmetrical. D. Tunicates have a stomach. 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 tunicates? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect 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?
Bacteriophages may reproduce using a __________ pathway in which viral DNA becomes part of the
host chromosome. Fill in the blank(s) with the appropriate word(s).
Many antibacterial agents and chemotherapy agents act as topoisomerase inhibitors. Why would inhibition of topoisomerase cause cell death in bacterial and eukaryotic cells?
What will be an ideal response?
The __________ have an unsegmented body, a cuticle that is molted, a complete gut, and a pseudocoelom.
Fill in the blank(s) with the appropriate word(s).