A student prepares lysate A from cells with high levels of cAMP and lysate B from cells with very low levels of cAMP. If these lysates were subjected to DNase, it could be predicted that cAMP receptor protein binding sites would be:

A. not present in either lysate.
B. protected in lysate A.
C. protected in lysate B.
D. equally protected in both lysates.
E. not occupied in either lysate.


B

Biology & Microbiology

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