According to the induced fit hypothesis of enzyme catalysis, _____
A) the binding of the substrate depends on the shape of the active site
B) some enzymes change their structure when activators bind to the enzyme
C) a competitive inhibitor can outcompete the substrate for the active site
D) the binding of the substrate changes the shape of the enzyme's active site
E) the active site creates a microenvironment ideal for the reaction
Answer: D
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If she moves the operator to the far end of the operon, past the transacetylase (lacA) gene, which of the following would likely occur when the cell is exposed to lactose?
A) The inducer will no longer bind to the repressor. B) The repressor will no longer bind to the operator. C) The operon will never be transcribed. D) The structural genes will be transcribed continuously. E) The repressor protein will no longer be produced.
________ produce 40 to 50 percent of the organic carbon in the ocean.
Fill in the blank(s) with the appropriate word(s).
How can replication be increased in the Artemia bioassay to improve reliability of results?
What will be an ideal response?
The form of native DNA, referring to its two adjacent polynucleotide strands interwound into a spiral shape
What will be an ideal response?