Cell division Simulation
What does the simulation tell you about Mitosis and
Meiosis
Recap summary
•
Explain the purpose of Meiosis
•
Explain the purpose of Mitosis
•
Outline how meiosis allows for genetic variation
Hinge-Point Question
C-Level Question
Explain the purpose of
meiosis.
B-Level Question
A-Level Question
Explain how the
differences in the
processes of mitosis and
meiosis result in the
production of different
daughter cells.
Explain how meiosis
allows for genetic
variation and speculate as
to why genetic variation
is needed within a
species.
Hinge-Point Question
C-Level Question
B-Level Question
A-Level Question
Explain how the differences
in the processes of mitosis
and meiosis result in the
production of different
daughter cells.
Explain how meiosis allows
for genetic variation and
speculate as to why genetic
variation is needed within a
species.
Meiosis is needed to produce
new sex cells to allow for
Mitosis: DNA is doubled, no
reproduction.
crossing over, chromosomes
remain identical, only 1
division  results in 2
diploid cells that are
identical
Crossing over results in nonidentical chromosomes
which are randomly split
between cells. Sperm and
egg randomly fuse meaning
that each child will receive a
random selection of genes.
Genetic variation is
necessary to have a
population with different
traits. Different traits lead to
natural selection and
evolution.
Explain the purpose of
meiosis.
Meiosis: DNA is doubled,
crossing over, chromosomes
not identical, 2 divisions 
results in 4 haploid nonidentical cells
By the end of the lesson, you must have…
-Visualise mitosis and meiosis through the
simulation
- Identify the 3 key differences and 3 similarities
between the two processes
Independent Practice
Step 1:
Go to the website:
https://digitalfirst.bf
wpub.com/life_11e/l
ife_activity_11_04.h
tml
It should look like
this
Plan
Apply the following settings
Run the simulation
Produce
Write down 3 similarities and 3 differences between the two stages
Research
Press the reset button, change the pairs of chromosomes setting
and press run again
What changes and what stays the same?
Research
Press the reset button, change the number of cycles setting and
press run again
What changes and what stays the same?
Research
Once finished, answer the 4 questions at the bottom of the page.
Conceptual Understanding
Read with your
teacher!
Ocular Lens
You don’t need
to draw this
but you need to
write down the
part of the
microscope and
what is does
Fine Focus
Coarse Focus
adjusts the stage
Light
Hinge-Point Question
Safety First!
Remember: the microscope is
HEAVY.
Make sure you are holding it with two
hands around the base to avoid it
falling and crushing your foot.
Do not play around with the
microscopes as they are EXPENSIVE.
If you break it, you bought it.
Guided Practice
Instructions
1) Form groups of 3-4.
2) Grab your safety glasses and a bench mat and place it where you will be setting up
your microscope around the room.
3) Once your group is ready, one of your members will grab the microscope and set it
up at the bench where your group is. You will have one slide given to you per
microscope.
4) When you adjust your focus (if you need help, just ask), look through the
microscope and draw what you see in the sections provided
5) Once you have had 3 minutes at your station to draw your specimen, you will rotate
CLOCKWISE and go to the next station and repeat the process
Draw the stages
For each slide under the microscope, draw a labelled diagram of what you
see and name the stage that you are seeing. An example has been done
for you below.