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.
Social Media. The Anatomy of a Facebook Meme. This post is co-authored by Dan Zarrella and Alison Driscoll. Alison is an interactive copywriter and social media consultant who specializes in FacebookFacebook reviews marketing. She authors a blog at alisondriscoll.com.