Worksheet on DNA and RNA - St. Joseph High School

During replication, the two nucleotide chains _____ and each chain serves as a _____ for a new nucleotide chain. The sites where DNA replication and separation occur are called _____. During replication, enzymes called _____ untwist the double helix, separating the two parental strands. The point at which the two chains separate is known as the ................
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