Dna replication is facilitated by the fact that the base on one strand of the double helix (t, for example) always has the same partner (a, in this case) on the other strand. this feature of dna is called:
Added by -Ngel R.
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This feature of DNA is called complementary base pairing. Show more…
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Describe the double helix of DNA and the process of DNA replication. What is meant by complementary base pairing?
Nucleic Acids and Protein Synthesis
DNA Double Helix
Replication of DNA: Upon separation, each strand ("parent strand") serves as the synthesis of a new strand. Replication of bacterial DNA begins at a site called the origin. An enzyme called DNA helicase unwinds and unzips the double helix. A primer molecule made of DNA is synthesized. DNA Polymerase III "reads" a template strand and synthesizes a complementary strand of DNA in the above direction (recall #10a). The strand is synthesized continuously from the origin and is referred to as the leading strand. The other strand is synthesized in short segments and is referred to as the lagging strand. The short strands of DNA are called fragments and must be assembled with the help of an enzyme called DNA ligase. The new DNA molecules are then twisted (supercoiled) by an enzyme called DNA gyrase.
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