they used to cut the DNA at the specific site. For example: BamHI is a restriction enzyme that cuts between the given recognition site:
Those are restriction enzymes, a kind of endonucleases. Some wellknown ones are EcoRI, HindIII or BamHI
1. Which enzyme(s) would cut the human DNA shown in Part A on both sides of the vgp gene, but not inside the gene? Answer: BamHI, HaeIII, and HindIII 2. Which enzymes(s) would cut the plasmid without disrupting the function of the amp^R gene? Answer: BamHI, EcoRI, and HaeIII 3. Which enzyme(s) would produce sticky ends when cutting both the human DNA and the plasmid? Answer: BamHI, EcoRI, and HindIII 4. Which one restriction enzyme satisfies all three of the requirements listed above? Answer: BamHI only
Perhaps you mean a restriction enzyme, but not disrupting the function of whatever is not too clear. I think if you cut a plasmid with any restriction enzyme I am familiar with the function of that plasmid would be disrupted.
Such an enzyme is called a restriction endonuclease
TaqI's restriction site is:TCGAAGCT
Restriction enzyme cuts DNA strand at specific locations Restriction enzyme cuts DNA strand at specific locations
A restriction enzyme (also known as restriction endonuclease) is protein which cuts DNA up at specific sequences (called restriction sites) in a genome. For example, the commonly used restriction endonuclease EcoRI recognizes every DNA sequence GAATTC and cuts at the point between the guanine and the adenine in that sequence, forming blunt ends (or straight, even ends). Interestingly and coincidentially, the restriction site for most restriction enzymes are genetic palindromes (the sequence reads exactly the same backwards on the complementary strand). In the case of EcoRI, the two complementary DNA strands for the restriction site are:5'-- GAATTC --3'3'-- CTTAAG --5'After this DNA sequence is cut, it might look something like this:5'-- G AATTC --3'3'-- C TTAAG --5'
By playing with you.
Yes?
Topoisomerase is not a restriction enzyme but an enzyme that keeps unwound DNA from tangling while it is being replicated.
Restriction enzymes are produced by bacteria to help destroy foreign, invading DNA, such as the DNA of bacteriophage (a virus that infects bacterial cells). Every restriction enzyme comes with a methylase enzyme, or more specifically, a DNA methyltransferase. The methylase enzyme methylates (adds a methyl group) to the restriction endonuclease site on the cell's own DNA, which protects the sites from the restriction enzyme so that it does not degrade its own DNA.