The three domains proposed by Carl Woese and George Fox are the Archaea, the Eukarya, and the Protista
Indicate whether the statement is true or false
FALSE
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You are studying regulation of a prokaryotic operon. Experiments show that expression of the operon is increased when levels of biosynthetic product from that pathway are low. Based on this information, what is a likely mode of regulation?
A. The product binds a repressor, allowing it to bind the operator. B. The product binds an activator, helping RNA polymerase to bind the promoter. C. The product binds a repressor, preventing it from binding the operator. D. The product binds to the biosynthetic enzymes, blocking them directly. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about transcriptional regulation in prokaryotes? Consider Possibilities · Consider the different answer options. Which can you rule out? 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?
A common method used in the diagnosis of giardiasis is detection of Giardia
A) cysts in stool. B) antigens in blood. C) antigens in stool. D) cysts or antigens in stool.
Terns, skuas and jaegers are all related to the ____ group
a. gull b. pelican c. tubenose d. penguin e. shorebird
The adrenal cortex hormone that influences metabolism and immunity is the _____________.
A. adrenal medulla B. adrenal gland C. adrenal cortex D. cortisol E. gonads