Recombinant DNA Technology
Restriction enzymes

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

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

different length fragments of DNA resulting from loss or gain of a restriction site
All of these
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

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