1 point Match the protein to the function. "Seals the gap" by forming a phosphodiester bond between nucleotides without the triphosphate bond Unwinds double helix to provide single strands of DNA Associate with single strands to prevent re-annealing during replication Lays down RNA primers to provide a 3' OH Forms phosphodiester bond between 3'OH and 5' tri- phosphate
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Step 1: The function "Seals the gap" by forming a phosphodiester bond between nucleotides without the triphosphate bond is performed by **DNA ligase**. Show more…
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Matching: Match each protein on the left with its function on the right. Each protein may be used only once: ENZYME: Helicase FUNCTION/DEFINITION: Reads DNA in the 3 to 5 direction, synthesizes complementary DNA strands in the 5 to 3 direction Functions to unwind the DNA helix at the Origin of Replication Created through discontinuous replication, comprised of Okazaki fragments DNA Polymerase FUNCTION/DEFINITION: Functions to lay down RNA primers to allow DNA Polymerase to function Created through continuous replication Primase FUNCTION/DEFINITION: Functions to bind Okazaki fragments together Single Stranded Binding Proteins FUNCTION/DEFINITION: Function to stabilize DNA strands when separated Ligase FUNCTION/DEFINITION: Functions to join Okazaki fragments together Leading Strand FUNCTION/DEFINITION: Functions to synthesize DNA continuously in the 5 to 3 direction Lagging Strand FUNCTION/DEFINITION: Functions to synthesize DNA discontinuously in the 5 to 3 direction Created through discontinuous replication, comprised of Okazaki fragments
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Which of the following replication proteins is correctly paired with its function? Helicase - enhances separation of DNA strands Ligase - synthesizes a short RNA sequence to initiate replication Single-strand binding proteins - relieves torsional stress due to unwinding by the DNA Topoisomerase - joins Okazaki fragments Primase - removes RNA primers and replaces them with DNA
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