3. a mental representation of something: she's got a good idea of the layout of the factory. 4. the characterization of something in general terms; concept: the idea of a square circle is self-contradictory. 5. an individual's conception of something: his idea of honesty is not the same as yours and mine. 6. the belief that something is the case: he has the idea that what he's doing is right. 7. a scheme, intention, plan, etc: here's my idea for the sales campaign. 8. a vague notion or indication; inkling: he had no idea of what life would be like in Africa.
Since DNA replication moves along the parent strand in the 5' to 3' direction, replication can occur very easily on the leading strand. As seen in, the nucleotides are added in the 5' to 3' direction. Triggered by RNA primase, which adds the first nucleotide to the nascent chain, the DNA polymerase simply sits near the replication fork, moving as the fork does, adding nucleotides one after the other, preserving the proper anti-parallel orientation.
1 The separation of the two single strands of DNA creates a âYâ shape called a replication âforkâ. 2  The two separated strands will act as templates for making the new strands of DNA. 3  One of the strands is oriented in the 3â to 5â direction (towards the replication fork), this is the leading strand. The new strand is proofread to make sure there are no mistakes in the new DNA sequence. 2  Finally, an enzyme called DNA ligase seals up the sequence of DNA into two continuous double strands. 3  The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides.