Unformatted text preview: for DNA replication. The process of DNA Replication There are three basic steps to DNA replication: • The two DNA strands of the parental chromosome must unwind and separate. • Each strand of the parent chromosome serves as a template for the synthesis of a daughter strand. DNA is always synthesized in the 5' ± 3' direction from the 3' ± 5' parent strand template. It helps to remember that the 5' end is the free phosphate (PO 4- 3 ) end, and the 3' end is the –OH end of the sugar. • The newly synthesized double helix of each parent-daughter combination rewinds to form the DNA chains of a replicated chromosome. Each new DNA molecule is composed of one-half of the parent chromosome and one-half newly synthesized DNA....
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- Spring '10