英语词汇“modification and restriction system”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	modification and restriction system
释义	modification and restriction system modification and restriction system a system, generally involving the action of METHYLASES and RESTRICTION ENZYMES, that is thought to protect microbial CELLS from invading foreign DNA, such as PLASMID DNA or BACTERIOPHAGE DNA. The restriction enzyme cleaves the incoming DNA, at or near specific sites, and it is degraded. The same sites on the DNA of the host cell are protected from cleavage by modification of BASES at those sites, generally by METHYLATION.
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