Which of the following is the most likely explanation for the band pattern seen in lane 6?

A. Protein D is a restriction enzyme and cut the DNA fragment into two DNA fragments.
B. Protein D binding to the CRP-binding site is less tight compared to cAMP-CRP binding.
C. Protein D has a smaller mass than the cAMP-CRP protein.
D. Protein D removed radioactive label from the DNA fragment.


C

Biology & Microbiology

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