Repressible operons require that ________ bind to the repressor protein before it can bind to the operator.
A. a coenzyme
B. a cofactor
C. the substrate
D. the product
E. the reactant
Answer: D
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Mushrooms growing in your backyard are examples of ____ , above-ground structures formed by fungi to disperse spores
Fill in the blank with the appropriate word.
The general reaction of glycolysis is the conversion of glucose to which of the following?
a. acetyl CoA b. carbon dioxide c. water d. pyruvate
The combined action of two or more cooperating hormones is known as a(n) ___________________ interaction. Fill in the blank(s) with the appropriate word(s)
Which of the following statements is incorrect concerning the use of drug therapy in an HIV-positive patient?
A) If drug therapy is used in a confirmed HIV-positive patient, all HIV viruses can be successfully eliminated from the body. B) Protease inhibitors can slow the assembly of new viruses. C) Reverse transcriptase inhibitors can help to slow the virus from entering into host chromosomes. D) Two or more drugs can be combined to form a "drug cocktail."