Recombinant DNA Technology
Restriction enzymes

All of these
cut DNA in a staggered fashion
cut DNAs producing a blunt end
protect bacteria from viral infection

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Recombinant DNA Technology
An example of a restriction fragment length polymorphism is

cystic fibrosis results from a three base deletion in most cases but in other cases, other mutations are involved
an Eco RI cuts DNA at a different sequence than Hind III
All of these
different length fragments of DNA resulting from loss or gain of a restriction site

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Recombinant DNA Technology
Isoschizomers recognize

same recognition site and recognition sequence
same recognition sequence but different recognition site
same recognition site and different recognition sequence
different recognition site and different recognition sequence

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