Surround yourself with the wild of Bangkok in a fun day out with the family! 1  Spend a day 'in the wild' with Safari World's exotic animals. 2  See your favorite sea animals at Safari World's marine park, with its 8 spectacular shows. 3  Don't miss out on the world's first and only orangutan boxing show!
Discover how DNA helicase creates a replication fork to unwind the complicated DNA molecule and allow daughter strands to form on the parental template. The Semi-Conservative Model This model states that one parental strand of DNA is conserved in each new daughter molecule.
DNA replication is bidirectional from the origin of replication. To begin DNA replication, unwinding enzymes called DNA helicases cause the two parent DNA strands to unwind and separate from one another at the origin of replication to form two Y-shaped replication forks.