Section 3: DNA Replication (study guide A) – Flashcards
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DNA replication is the process by which DNA is (?) during the cell cycle.
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copied
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DNA replication takes place in the (?) of a eukaryotic cell.
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nucleus
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DNA is replicated during the (?) of the cell cycle.
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S stage
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DNA replication needs to occur so that every (?) will have a complete set of DNA following cell division.
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cell
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A template is something that serves as a (?)
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pattern
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Suppose that one strand of DNA has the sequence TAGGTAC what sequence of the complementary DNA strand (?)
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ATCCATG
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The 3 rules that proteins play during DNA replication.
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~They help unzip the DNA strand. ~They hold the DNA strands apart. ~They bond nucleotides together.
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In order for the DNA strands to separate, the (?) bonds connecting base pairs must be broken.
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hydrogen
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DNA replication is called semiconservative because each molecule consists of one (?) strand and one (?) strand.
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~Old ~New
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The 3 steps of replication.
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1) Enzymes unzip the helix. 2) DNA polymerase binds nucleotides together to form new strands that are complementary to the original strands. 3) Two identical DNA molecules result.
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Human chromosomes have (?) origin(s) of replication, where the DNA is unzipped so replication can begin.
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hundreds
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DNA polymerase has a proofreading function that enables it to detect (?) and correct them.
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errors
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The suffix- ase indicates and enzyme. A polymer is a string of repeating structural units. DNA polymerase is an enzyme that makes DNA by forming bonds between (?)
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nucleotides
