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Transcript
13 4 (a) Genetic modification of organisms uses a “toolkit” that includes: • • • enzymes that cut DNA enzymes that join sections of DNA together vectors that introduce DNA into new host cells. Some of the enzymes and vectors that are important in genetic modification are given an identifying letter in Table 4.1. Table 4.1 enzymes vectors A reverse transcriptase J plasmid B DNA polymerase K virus C DNA ligase L Agrobacterium tumefaciens D restriction endonuclease M BAC E RNA polymerase N bacteriophage Select one correct letter from Table 4.1 to fit each of the following statements. An enzyme that cuts DNA ............... An enzyme that joins sections of DNA together ............... A vector to introduce foreign DNA into bacteria ............... A vector to introduce foreign DNA into plant cells ............... A vector to introduce foreign DNA into animal cells ............... © OCR 2012 [5] Turn over
