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AP Biology. DNA Structure & Replication. Nucleic Acid Structure. Complimentary Base Pairing. S Phase of Cell Cycle. Replication fork. Origin of replication. Theta Replication in Prokaryotes. Termination of replication. Linear Replication in Eukaryotes. The parent molecule has - PowerPoint PPT Presentation

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  • AP Biology

    DNA Structure & Replication

  • Nucleic Acid Structure

  • Complimentary Base Pairing

  • S Phase of Cell Cycle

  • ThetaReplication in Prokaryotes

    Origin ofreplicationReplication forkTermination of replication

  • Linear Replication in Eukaryotes

  • .The parent molecule has two complementary strands of DNA. Each base is paired by hydrogen bonding with its specific partner, A with T and G with C.

  • .The parent molecule has two complementary strands of DNA. Each base is paired by hydrogen bonding with its specific partner, A with T and G with C.The first step in replication is separation of the two DNA strands.

  • Semi Conservative process of DNA ReplicationThe parent molecule has two complementary strands of DNA. Each base is paired by hydrogen bonding with its specific partner, A with T and G with C.The first step in replication is separation of the two DNA strands.Each parental strand now serves as a template that determines the order of nucleotides along a new, complementary strand.

  • Origins and Replication bubbles

  • DNA Replication

  • DNA Replication by adding Nucleosides on the 3 endNew strand5 endPhosphateBaseSugarTemplate strand3 end5 end3 end5 end3 end5 end3 endNucleosidetriphosphateDNA polymerasePyrophosphate

  • 5 Carbon Sugar Important Parts(It could be DNA or RNA)

  • Helicase is the GREEN blob

  • RNA Primer(Remember, RNA is temporary)

  • .New strand5 endPhosphateBaseSugarTemplate strand3 end5 end3 end5 end3 end5 end3 endNucleosidetriphosphateDNA polymerasePyrophosphate

  • Nucleotide Excision Repair

  • Telomere Removal at the Chromosome EndsEnd of parentalDNA strands53Lagging strand53Last fragmentRNA primerLeading strandLagging strandPrevious fragmentPrimer removed butcannot be replacedwith DNA becauseno 3 end availablefor DNA polymerase53Removal of primers andreplacement with DNAwhere a 3 end is availableSecond roundof replication5353Further roundsof replicationNew leading strandNew leading strandShorter and shorterdaughter molecules

  • Apoptosis in the hand

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