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Full Exam & Question Bank: Lesson 2: Recombinant DNA, Gene Cloning, PCR and Genetic Engineering

300 standard ministerial MCQs measuring key competencies with step-by-step navigation and organized palette.

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Question 1 of 300 Official Ministerial Exam Question • High-Order Thinking
Bacteria protect their endogenous chromosomal DNA from self-digestion by their own restriction endonucleases through:
A Rapid degradation of the enzymes
B Methylation of recognition sites by modification enzymes
C Nuclear membrane compartmentalization
D Synthesis of protective histone proteins
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