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Ligase: joins (seals) the ends of DNA

Ligase: joins (seals) the ends of DNA. Vectors: DNA molecule that can replicate & is used to transport foreign DNA.

bernard-hutchinson
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Ligase: joins (seals) the ends of DNA

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  1. Ligase: joins (seals) the ends of DNA

  2. Vectors: DNA molecule that can replicate & is used to transport foreign DNA Four types of Vectors: Plasmids; Bacteriophage & other viruses; artificial chromosomes (YAC or yeast artificial chromosome/ DNA + Ori +centromere for sister chromatid separation + telomeres to mark end of chromosome); & Cosmids (plasmid + l cos site & can be pckged into phage capsid)

  3. Ti sequence 23 bp direct repeats, that flank the virulence & hormone genes Transgenic Plant: Vector = Agrobacterium tumefaciens plasmid called Ti (causes crown gall tumors). Plasmid codes for virulence gene and regulates pant growth (codes for plant growth hormones, auxin & cytokinin). It acts like a transposon.

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