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Dna Replication
Beginning of essay
DNA is a molecule that has a repeating chain of identical five-carbon sugars (polymers) linked together from head to tail. It is composed of four ring shaped organic bases (nucleotides) which are Adenine (A), Guanine (G), Cytosine (C) and Thymine (T). It has a double helix shape and contains the su ....
Middle of essay
....synthesis at the point of the replication fork. The addition of nucleotides to the 3` end of a short new chain until this new segment fills in a gap of 1000 to 2000 nucleotides between the replication fork and the end of the growing chain to which the previous segment was added. Hence, this new short chain is then added to the growing chain, and the polymerase jumps ahead again to fill in another gap. Thus in short, the polymerase copies the template strand in segments about 1000 nucleotides lon.... |
| Number of words: 2173 |
Approximate pages: 8 |
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