Asked by mehaksaini | 10th Jul, 2009, 07:44: AM
The process you are referring to is known as DNA replication. It is the process of duplicating the DNA to make two identical copies, one of which will be passed along to each daughter cell when the cell divides.
When a cell divides, DNA replicates itself by first breaking the bonds between the base pairs, and unzips itself into two strands. A replication fork, a Y-shaped structure, moves down the strands as DNA unzips. Free nucleotides, which are floating in the nucleus, form bonds with each separated DNA strand at their matching nucleotide locations according to the base-pairing rule. In this way, two matched DNA strands are produced from the one original.
Answered by | 12th Jul, 2009, 06:56: AM
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