15. ___L___adenine, cytosine, guanine and thymine; they make up the of the “rungs” DNA ladder 16. ___C___enzyme responsible for the DNA molecule so it can be copied “unzipping” N___small 17. ___ pieces on the lagging strand that are together “stitched” Prokaryotic DNA replication is different than eukaryotic. How…? 18. What shape does prokaryotic DNA have? Circular rather than strands 19. How many replication forks does it have? only 2…starts at one point and goes both ways around the circle (eukaryotes have many replication forks) 20. Describe the process of prokaryotic DNA replication. starts at one and goes both ways around the circle DNA replication really happens in three steps. Describe each step and the enzyme involved: 21. Step 1: DNA Helicase the DNA molecule “unwinds” (breaks hydrogen bonds) 23. Step 2: DNA Polymerase adds new complementary base pairs (A with T, G with C) 25. Step 3: There’s one strand (leading strand) that gets copied as one long piece. There another (lagging strand) that is down” (antiparallel) and “upside gets copied in pieces (Okazaki fragments) and those get put together by DNA Ligase.
15. ___L___adenine, cytosine, guanine and thymine; they make up the “rungs” of the DNA ladder 16. ___C___enzyme responsible for “unzipping” the DNA molecule so it can be copied 17. ___ N___small pieces on the lagging strand that are “stitched” together Prokaryotic DNA replication is different than eukaryotic. How…? 18. What shape does prokaryotic DNA have? Circular rather than strands 19. How many replication forks does it have? only 2…starts at one point and goes both ways around the circle (eukaryotes have many replication forks) 20. Describe the process of prokaryotic DNA replication. starts at one and goes both ways around the circle DNA replication really happens in three steps. Describe each step and the enzyme involved: 21. Step 1: DNA Helicase “unwinds” the DNA molecule (breaks hydrogen bonds) 23. Step 2: DNA Polymerase adds new complementary base pairs (A with T, G with C) 25. Step 3: There’s one strand (leading strand) that gets copied as one long piece. There another (lagging strand) that is “upside down” (antiparallel) and gets copied in pieces (Okazaki fragments) and those get put together by DNA Ligase.
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