Saturday, July 13, 2019

Do Eukaryotic cells have restriction endonuclease? Justify your answer

Do eukaryotics cells have restriction endonuclease:

 Restriction enzymes are a class of enzymes called endonucleases. Endonucleases able to cut in the middle of the DNA backbone or the phosphodisaster bonds.a different class of enzymes called exonucleus is cut the DNA backbone, but only from the ends- ida from the 3' end or the 5' end. Most restriction endonucleases are prokaryotic in origin. However, there are several found in Eukaryotic cells, including our own. In eukaryotes there are not referred to as restriction enzymes, just endonucleases. An example of an exonucleus in eukaryotes is Apn 1, isolated from yeast. This enzyme helps prevent DNA damage from environmental agents.

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