DNA Replication Part 2:

Question 1

What does the enzyme do when its ready to replicate?

Answer 1

It unzips the helix

Question 2

What does chromatin do once its ready to replicate?

Answer 2

It gathers itself into chromosomes

Question 3

What does U stand for?

Answer 3

Urasil (RNA needs U when it makes DNA)

Question 4

Where is the information kept during the replication process?

Answer 4

It is locked in the helix

Question 5

Whats the difference between the leading/lagging strand?

Answer 5

Leading: Its always on top, and it is continuous

Lagging: Its always on the bottom and its in sections

Question 6

What are the 4 enzymes used in the replication process?

Answer 6

1. Helicase: unzips helix
2. RNA primase: lays the starting block for DNA polymerase)
3. DNA polymerase: zips along the top strand (attaches the matching bases to the top strands bases)
   - creates a copy of original DNA
4. Ligase: replaces any mistakes/any RNA bases

Question 7

What is interphase?

Answer 7

A phase that takes place before mitosis

Question 8

What are the 4 phases in mitosis? (including cytokinesis)

Answer 8

1. Prophase: organizes 2 sets of DNA into chromosomes
2. Metaphase: Lines up chromosomes within the center of the cell
3. Anaphase: splits chromosomes into 2 pairs
4. Telephase: starts to get ready to split
5. Cytokinesis: splitting of the cell