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.
Amy Schumer. Amy Beth Schumer[1] (born June 1, 1981) is an American stand-up comedian, writer, actress, and producer. She ventured into comedy in the early 2000s before appearing as a contestant on the fifth season of the NBC reality competition series Last Comic Standing in 2007.