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CBSE Class 10 Answered

how is dna copying done in humans??
Asked by | 21 Dec, 2011, 04:50: PM
Expert Answer
DNA copying is called replication of DNA. DNA replication is a biological process and is the basis for biological inheritance. The process starts with one double-stranded DNA molecule and produces two identical copies of the molecule. Each strand of the original double-stranded DNA molecule serves as template for the production of the complementary strand, a process referred to as semiconservative replication.
In acell, DNA replication begins at specific locations in the genome, called origins.  Unwinding of DNA at the origin, and synthesis of new strands, forms a replication fork.In addition to DNA polymerase, the enzyme that synthesizes the new DNA by adding nucleotides matched to the template strand, a number of other proteins are associated with the fork and assist in the initiation and continuation of DNA synthesis.
Answered by Meghna Thapar | 22 Dec, 2011, 01:39: PM
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