Once the lac repressor binds to the lac operator site, RNA polymerase is prevented from transcribing which genes?

A. galactosidase gene
B. regulatory gene
C. galactoside transacetylase gene
D. galactosidase and galactoside transacetylase genes
E. galactosidase and regulatory genes


D. galactosidase and galactoside transacetylase genes

Biology & Microbiology

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Fleas are endoparasites.

Answer the following statement true (T) or false (F)

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Which organism is most likely to have a type III survivorship curve?  

A.  an oak tree B.  a domestic dog C.  corn in a farmer's field D.  Paramecium 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 the characteristics of a type III survivorship curve? 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?

Biology & Microbiology

Tom Curtis wrote a letter in 2006 to try and

encourage research into a. rare plants. b. microorganisms. c. agricultural crops. d. prairie grasses. e. all of these.

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In the tropical latitudes, the length of the dry season increases with distance from the equator

Indicate whether the statement is true or false

Biology & Microbiology