AP Bio Unit 6 Test Cram
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Last updated 5:36 PM on 4/14/26
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7 Terms
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Pyrimidines
Single-ringed base pairs (U,C,T), components of nucleotides
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Purines
Double-ringed base pairs (A & G)
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Primase
an enzyme that synthesizes short RNA primers during DNA replication.
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Helicase
unzips the double-stranded DNA helix during replication, allowing access to the template strands.
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Topoisomerase
enzyme that relaxes the coil at the replication fork to make DNA into an open coil.
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DNA Polymerase
enzyme that builds new bases on the new strand.
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Ligase
enzyme that acts as “glue” to remaining nucleotides and okazaki fragments.