Download Chromosomes - stephen fleenor

Warm-Up
What is the purpose of metaphase during mitosis?
The purpose of metaphase during mitosis is…
During replication, the function of the enzyme DNA
polymerase is to –
What is the purpose of metaphase during mitosis?
1.
2.
3.
4.
to separate chromosomes
to condense chromosomes
to form new nuclei
to line up chromosomes
During replication, the function of the enzyme DNA
polymerase is to
1.
2.
3.
4.
bind nucleotides together.
send messages.
receive messages.
locate replication sites
Chromosomes in the Cell Cycle
UNIT
6
UNIT
Chromosomes in the Cell Cycle
6
Purpose of the Cell Cycle:
1. Growth
10,000
Chromosomes in the Cell Cycle
Purpose of the Cell Cycle:
1. Growth
2. Replace dead cells
What’s
this cell
going to
do?
UNIT
6
Chromosomes in the Cell Cycle
Purpose of the Cell Cycle:
1. Growth
2. Replace dead cells
3. Asexual reproduction
UNIT
6
Chromosomes in the Cell Cycle
Purpose of the Cell Cycle:
1. Growth
2. Replace dead cells
3. Asexual reproduction
• DNA has to be replicated, then
packaged up.
UNIT
6
Chromosomes in the Cell Cycle
Purpose of the Cell Cycle:
1. Growth
2. Replace dead cells
3. Asexual reproduction
• DNA has to be replicated, then
packaged up.
• Chromosomes are tightly-wound
pieces of DNA.
UNIT
6
Chromosomes in the Cell Cycle
UNIT
6
Purpose of the Cell Cycle:
1. Growth
2. Replace dead cells
3. Asexual reproduction
• DNA has to be replicated, then
packaged up.
• Chromosomes are tightly-wound
pieces of DNA.
https://www.youtube.com/watch?v=OjPcT1uUZiE
Chromosomes in the Cell Cycle
Draw this in your notes:
UNIT
6
Plate Activity
On a paper plate, draw the
eight stages of the cell cycle.
Use pipe cleaner pieces to
indicate chromosomes in
prophase through cytokinesis.
UNIT
6
Pass Your Plate Over
UNIT
6
• Which stage has chromosomes lined up in the middle?
• In which part of the cell cycle are chromosomes present?
• In which stage does the cell divide into two?
• Which comes first: growth, or preparation for mitosis? In
which stage does this happen?
• Which comes first: DNA replication, or condensation of
chromosomes? In which stage does this happen?
• What is the relationship between prophase and telophase?
Use “nucleus” in your answer.
Closure
Answer the following question in a
complete sentence:
Name/Nombre
Date/Fecha
Period ____
What is the relationship between DNA and a
chromosome?
Suggested sentence stem:
The relationship between DNA and a chromosome is…