University:
Washington State University
Course:
BIOLOGY 120 | Introductory Botany
Academic year:

2024
Views:

170

Pages:

1
Author:

Michael Haley

DNA replication worksheet 1. Why does DNA to pass genetic information on to new generations of cells need to replicate? 2. Step 1 of DNA replication DNA strands unwind with help from Helicase (enzyme). Helicase breaks the hydrogen bonds and connects the two sides of the ladder 3. Step 2 of DNA replication DNA polymerase (enzyme) uses the original stand of DNA to match new complimentary nucleotides to the original strands. The complimentary nucleotides bond with the old strands 4. Step 3 of DNA replication New nucleotides are put in place on both strands and produce two new DNA molecules. Every DNA molecule is half old and half new. End product is two identical strands. 5. In which direcin opposite directions (5' to 3') tion are new nucleotides added during replication? 6. What is the differ- leading: new strand of DNA that is continuous. ence between lead- lagging: new strand that grows in okazaki fragments ing and lagging strands? 7. What do you think DNA would not replicate correctly and would create muwould happen if tations the process occurred incorrectly? 1/1