University:
Franklin University
Course:
BIO-201 | Introductory Biology I
Academic year:

2021
Views:

108

Pages:

2
Author:

Charlee Buchanan

DNA Replication 1. To understand DNA replication, we need to understand the “why.” Why does DNA need to replicate before cells divide? ________________________________________________ DNA replication needs to occur because existing cells divide to produce new cells. ________________________________________________ In the below DNA diagram, label ONE of each bolded term: 2. Deoxyribose (sugar). Total number in image? _________ 3. Nitrogenous base. Total number in image? ___________ 4. Hydrogen bond. Total number in image? _____________ 5. Phosphate. 6. Label 5’ to 3’ strand and 3’ to 5’ strand. ________________________________________________ ________________________________________________ 3. DNA Replication has many key players! These are just a few of the major key player enzymes. In your own words, describe each of their functions in DNA replication. Helicase:____________________________________________________________________________________________ DNA Polymerase:_____________________________________________________________________________________ Primase:____________________________________________________________________________________________ Ligase:______________________________________________________________________________________________ Your turn to narrate! Narrate the illustrations below to explain the sequence of events occurring in DNA replication. 4. 5. 6. 7. 8. Label the leading and lagging strands in the last picture. Explain what is meant by the “lagging” strand and why this occurs.