The direction in which DNA is copied.

thename (1) fixed point began two-way replication:this is the primary form of primary and etony
DNA
replication, from a specific point of dechain, along two opposite directions each grow two chains, forming a replication bubble, with electron
scope
can observe the presence of replication bubbles.(2) Point starts one-way replication:primer colE1 is a typical example of replication starting at a starting point, growing two chains in the same direction to form a replication fork (for replicationk).(3) two points to start one-way replication: the replication ofadenovirus DNA starts from two starting points, forming two replication forks, each copying a new chain in one direction.in general, the starting point and direction of DNA replication is not only different from that of the primary nucleus, but also quite different from the different genus belonging to the primary and endogenetic organisms.
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