A protein that regulates transcription by binding to the operator is known as a(n)

A. induction protein.
B. repressor.
C. operon.
D. promoter protein.
E. operator.


Answer: B

Biology & Microbiology

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Two possible end products of fermentation are ________ (as is produced by our muscle cells under anaerobic conditions) and ________ (as is produced by yeast under anaerobic conditions)

Fill in the blank(s) with correct word

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The disease known as dengue hemorrhagic fever is actually

A) a hyperimmune response to reinfection with the dengue virus. B) an immediate immune reaction to the initial infection with the dengue virus. C) an antibody-antigen complex reaction. D) the result of co-infection with other arboviruses. E) the chronic carrier state of the dengue virus.

Biology & Microbiology

Which of the following are the four classes of biological molecules?

a. nucleic acids b. RNA c. carbohydrates d. sucroses e. proteins f. lipids g. DNA h. cholesterols

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The (definitive/intermediate/primary) host is where immature stages of parasites develop

What will be an ideal response?

Biology & Microbiology