The MacBook Pro follows, with its prices going from $2,199 down to $1,999 for the 15-inch version (and from $1,499 for the 13-inch version down to $1,299). That's a break from traditional Apple pricing, where prices would remain the same generation over generation, with updated components adding value.
Restriction enzymes can also be used to generate compatible ends on PCR products. In all cases, one or more restriction enzymes are used to digest the DNA resulting in either non-directional or directional insertion into the compatible plasmid.
The restriction enzyme cleavage site is a specific site on the DNA strand that has a defined sequence of nucleotides. The restriction enzyme recognizes this sequence, binds to â¦ the DNA and produces a cut. For example, for the restriction enzyme EcoR1, the restriction site is GAATCC. Therefore, whenever EcoR1 finds GAATCC, it binds to the DNA at that location and produces a cut. 3 people found this useful.