DNA polymerases need a primer oligonucleotide (RNA or DNA) - their substrates are an existing 3'-OH group and a dNTP. The primase however is a typical RNA polymerase, capable of initiating polynucleotide synthesis de novo by positioning a complementary ribonucleoside 5'-triphosphate opposite its complementary DNA base.
Alison Schapker. Alison Schapker is an American television writer and producer. She is well known for her work on the ABC espionage series Alias and for the FOX science-fiction series Fringe.
Alison Kosik is a business correspondent for CNN. She is based in CNNâs bureau in New York. In addition to reporting live daily from the New York Stock Exchange in New York, she provides business and financial reporting for CNN networks and platforms, including CNNMoney.com. Kosik began working for CNN in 2008.