7. Diagram a replication fork in bacterial DNA and label the following structures or molecules a. DNA pol III b. Helicase c. RNA primer d. Origin of replication e. Leading strand (label polarity) f. DNA pol l g. Topoisomerase h. SSB protein i. Lagging strand. (label polarity) j. Primase k. Okazaki fragment
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The replication fork is the point where the DNA double helix is unwinding and new strands are being synthesized. Show more…
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Draw a schematic diagram of a replication fork. Indicate on your diagram where each of the following features is: (a) leading strand, (b) lagging strand, (c) Okazaki fragment; (d) RNA primer; (e) parental DNA helix. Be sure to label all DNA termini with appropriate 5' and 3' ends.
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The diagram below represents a DNA replication fork in a living cell: Direction of movement of replication fork "Parental" DNA A. Add the two new DNA strands being synthesized to the diagram, clearly showing which strand is polymerized continuously and which is made discontinuously. Use arrow heads to indicate the direction of synthesis. B. Label the 5' and 3' ends of the new DNA strands. C. Label the leading and lagging strands of the replication fork. D. What enzymatic activity is required to separate the two parental DNA strands?
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