Endonuclease

Hi all, I am prepare in entrance exam. I need help. A restriction endonuclease has the recognition sequence G/AATTC, where "/" indicate the cut side. This sequence is found, on average, once every 'X' residues in a chromosome. 'X' = Options a. 146 ...

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When a foreign DNA enters a bacterial cell, there is a race between methylases and restriction endonucleases. If the DNA is methylated as "self" before the corresponding endonuclease arrives, the DNA will not be sliced. I'm sure there is more to this story -- ...

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... use PCR? I have a quiz coming up in 5 days and I was wondering if there are any good sites for solving questions about ligation, restriction endonuclease, blunt and sticky ends and pUC8 plasmids and whatnot. If you know any sites that have answers as well as questions please let me know otherwise ...

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Restriction endonuclease used in PCR?

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... In the budding yeast Saccharomyces cerevisiae, mother cells but not daughter cells can switch mating type because they selectively express the HO endonuclease gene. This asymmetry is due to the preferential accumulation of an unstable transcriptional repressor protein, Ash1p, in daughter cell ...

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