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WARM UP 1/25
1. What is something that you learned from
the online activity yesterday?
2. Humans have a total of
____chromosomes.
3. A section of DNA is call a _________
4. Genes have different versions called
_______.
5. Draw a picture of a pair of homologous
chromosomes.
TODAY 1/25
1)
2)
3)
4)
5)
6)
Engage activity with seat partner
Learning Target #3 (last one of the week)
Beginning notes on Ch 11 #2
Online assignment (partner)
Revise engage activity
Exit ticket
ENGAGE DIRECTIONS
• You are working with the person next to
you at your seat.
• You have a set of pictures. Work with
your partner to place them in order
from 1-14. (the 1st two are done for you)
TIME: 4 minutes
WHAT DO YOU THINK THIS
PICTURE IS ABOUT?
* Answer on your paper……
a. What do you think the circles in the picture
represent?
b. What parts do you recognize on the pictures?
c. What do you think is happening in the picture?
LEARNING TARGET 1/25
I can describe and identify the steps
of cell division and compare mitosis
and meiosis.
CHAPTER 11
NOTES #2
MITOSIS and MEIOSIS
DISCUSSION QUESTION
Each of us began as a single cell, so one
important question is:
• How did that single cell develop into a
body with more than a trillion cells?
• Even in a fully grown adult, cells still
undergo cell division. Why is this useful?
Cells need to divide
SOME REASONS:
1) To grow
2) To make more cells we need
3) To replace ones that die
4) To replace ones that we lose
Every cell in our body has the same DNA.
When cells divide, each new cell needs to
have a copy of that DNA
Organelle that helps the cell
divide….
•
CENTRIOLES
2 ways cells divide:
1) Mitosis
2) Meiosis
What is the same, what is different between
the two?
ONLINE ASSIGNMENT to look
at MITOSIS
• http://www.johnkyrk.com/mitosis.html
Log in and begin working.
EXIT SLIP
Get a new “Mitosis Sequencing Engage” sheet.
Using your website animation and what you learned, put
the steps to your engage activity in the right order.
Label the phases you learned on the STARRED steps *
-------------------------------------------------------------------------EXTRA CREDIT!
If you get done early, play the animation for MEIOSIS
and on a slip of paper with your name, write down 3
differences you notice between it and MITOSIS.