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micro lab ex21
restriction endonuclease digestion of dna and RFLP
| Question | Answer |
|---|---|
| cut DNA at specific sites with enzymes called | restriction endonucleases |
| restriction enzymes recoginize a particular target or ____ within a DNA double helix and catalize | recognition sequences |
| the activity of type II restricion enzymes coupled with modification enzymes form | restriction/modification systems (Type II R-M systems) |
| __ is a modification enzymes that nodify newly formed strands of DNA by adding methyl groups so the cells restriction enzymes cannot cut it | methylases |
| the first enzyme system found to have unique specificity is called a | prototype |
| additional enzymes fround to have the same speificity as the prototypes are called | isoschizomers |