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A restriction map is a map of known restriction sites within a sequence of DNA.Restriction mapping requires the use of restriction enzymes.In molecular biology, restriction maps are used as a reference to engineer plasmids or other relatively short pieces of DNA, and sometimes for longer genomic DNA.
Long-range restriction mapping is an alternative genomic mapping technique to short-range, also called fine-scale mapping. Both forms utilize restriction enzymes in order to decipher the previously unknown order of DNA segments; the main difference between the two being the amount of DNA that comprises the final map.
Optical mapping [1] is a technique for constructing ordered, genome-wide, high-resolution restriction maps from single, stained molecules of DNA, called "optical maps". By mapping the location of restriction enzyme sites along the unknown DNA of an organism, the spectrum of resulting DNA fragments collectively serves as a unique "fingerprint" or "barcode" for that sequence.
Restriction mapping is a method in which structural information regarding a segment of DNA is obtained using restriction enzymes. Restriction enzymes are enzymes that help cut segments of DNA at specific recognition sequences. The basis to restriction mapping involves digesting (or cutting) DNA with restriction enzymes.
In mathematics, the inflation-restriction exact sequence is an exact sequence occurring in group cohomology and is a special case of the five-term exact sequence arising from the study of spectral sequences.
The corresponding direct system is (F(U), r U,V) where r is the restriction map. The direct limit of this system is called the stalk of F at x, denoted F x. For each neighborhood U of x, the canonical morphism F(U) → F x associates to a section s of F over U an element s x of the stalk F x called the germ of s at x.
An award-winning California teacher broke down in tears in court as she confessed to sexually abusing two of her students, ages 11 and 12. Jacqueline Ma, who was named “Teacher of the Year” in ...
In mathematics, the constant sheaf on a topological space associated to a set is a sheaf of sets on whose stalks are all equal to .It is denoted by _ or .The constant presheaf with value is the presheaf that assigns to each open subset of the value , and all of whose restriction maps are the identity map .