Hy-Vee produce gets ugly; Stores debuts Misfits program to sell imperfect fruits and vegetables at a lower cost to help reduce food waste. WEST DES MOINES â To combat the nationâs food waste issue, Hy-Vee Inc. recently began offering so-called âuglyâ produce in nearly all of its 242 grocery stores.
In other words, DNA polymerase is an enzyme that synthesizes a product by interpreting the existing DNA strand as a template and produces the complementary sequence of the template into a new strand. 3. DNA polymerases necessitate the presence of a primer to start synthesis.The reaction catalyzed by DNA polymerases that works to elongate the chain is a nucleophilic attack by the 3âOH terminus of the growing chain on the innermost phosphorus atom of the deoxynucleotide triphosphate.Therefore, a primer strand with a free 3'-OH group must be bound to the template strand from the start.he reaction catalyzed by DNA polymerases that works to elongate the chain is a nucleophilic attack by the 3âOH terminus of the growing chain on the innermost phosphorus atom of the deoxynucleotide triphosphate. Therefore, a primer strand with a free 3'-OH group must be bound to the template strand from the start.
A PCR or polymerase chain reaction is a laboratory procedure in which millions of copies of a specific piece of DNA are made. It is essentially an amplification method, whereby the tiniest amounts of DNA that may be present in blood, hair or tissues can be copied so that there is enough for analysis.he name of this method is derived from the key component involved that carries out the replication of the DNA, called a DNA polymerase. This is an enzyme that exists in nature. The most commonly used polymerase is Taq polymerase, which is obtained from the bacterium Thermus aquaticus.