Microbiology Which of the following is not a mechanism for resistance to MRSA A Resistance is chromosomally mediated B Produced mainly by alteration in PBP's C MRSA resitance is absolutely beta lactamase dependent D Intrinsic resistance is known π‘ Explanation Which of the following is not a mechanism for resistance to MRSA β Correct Answer: C. MRSA resitance is absolutely beta lactamase dependent