Download Notes

Grab a whiteboard / marker & answer the following
questions.
Turn in Friday’s worksheet (Snurfle wksht)
1. Where are chromosomes located?
2. How many cells do you think are in our body? (Be specific, “a lot”
will not be accepted as an answer)
3. What happens if one cell in neck, arm, liver, bone, or stomach dies?
4. What process does my body undergo to create new cells if I grow or
get injured?
Grab a whiteboard / marker & answer the
following questions.
1. Where are chromosomes located? Nucleus
2. How many cells do you think are in our body? (Be specific, “a lot”
will not be accepted as an answer)
3. What happens if one cell in neck, arm, liver, bone, or stomach dies?
4. What process does my body undergo to create new cells if I grow or
get injured?
Grab a whiteboard / marker & answer the
following questions.
1. Where are chromosomes located? Nucleus
2. How many cells do you think are in our body? (Be specific, “a lot”
will not be accepted as an answer) 100 trillion +
3. What happens if one cell in neck, arm, liver, bone, or stomach dies?
4. What process does my body undergo to create new cells if I grow or
get injured?
Grab a whiteboard / marker & answer the
following questions.
1. Where are chromosomes located? Nucleus
2. How many cells do you think are in our body? (Be specific, “a lot”
will not be accepted as an answer) 100 trillion +
3. What happens if one cell in neck, arm, liver, bone, or stomach dies?
My body will recognize that I need to create an identical cell to
replace the cell I lost.
4. What process does my body undergo to create new cells if I grow or
get injured?
Grab a whiteboard / marker & answer the
following questions.
1. Where are chromosomes located? Nucleus
2. How many cells do you think are in our body? (Be specific, “a lot”
will not be accepted as an answer) 100 trillion +
3. What happens if one cell in neck, arm, liver, bone, or stomach dies?
My body will recognize that I need to create an identical cell to
replace the cell I lost.
4. What process does my body undergo to create new cells if I grow or
get injured? M I T O S I S!!!!!
Mitosis Review
• Video: https://www.youtube.com/watch?v=ZEwddr9ho-4
• Hand Dance
 Cytokinesis
Mitosis VS Meiosis
Directions:
• At your table
• In groups of 2 - 3
• On 1 white board
Mitosis VS Meiosis
Directions:
• At your table
• In groups of 2 - 3
• On 1 white board
In 1 minute: Write down as many
differences you see in these two
pictures!
ANY DIFFERENCE!!
Winner gets candy
Interphase
2 somatic (body cells)
4 gametes
Interphase
2 somatic (body cells)
4 gametes
Interphase
2 somatic (body cells)
4 gametes
Interphase
2 somatic (body cells)
4 gametes
Interphase
2 somatic (body cells)
4 gametes
Interphase
2 somatic (body cells)
4 gametes
Haploid
Term describing
cells that only
have one set of
a homologous
chromosome
pair
Haploid
Diploid
Term describing
cells that only
have one set of
a homologous
chromosome
pair
Haploid
Term describing
cells that have
both sets of a
homologous pair
Diploid
Term describing
cells that only
have one set of
a homologous
chromosome
pair
Haploid
Term describing
cells that only
have both sets
of a homologous
pair
Diploid
Haploid
Diploid
46
chromosomes
46
chromosomes
23
chromosomes
46
chromosomes
Diploid
46
chromosomes
23
chromosomes
Interphase
Why do you think
gametes (sex cells)
need to undergo
two cell divisions?
Mom
Starting cell
1
1
Dad
Size dictates the homologous pairs
2
2
1
2
1
Prophase
1
1
Metaphase
2
2
2
1
2
Starting cell
1
2
1
1
Anaphase
2
2
Starting cell
1
1
2
1
2
1
1
2
2
2
Telophase and Cytokinesis
• Mitosis
• PMAT
• Meiosis
• PMAT
• PII MII AII TII
On your own, in your spiral (right).
Place the following terms into a
Mitosis Vs Meiosis Venn Diagram
•
•
•
•
•
•
•
•
•
•
•
•
•
Involves 1 cell division
Starts with Diploid parents cell
Prophase, metaphase, anaphase, telophase
Results in 2 diploid cells
Creates gametes
Cells are identical
In metaphase II homologous chromosomes line up
Involves 2 cell divisions
Prophase II metaphase II anaphase II telophase II
Ends with cytokinesis
Results in 4 haploid cells
Creates somatic cells
In metaphase, individual chromosomes line up
Interphase
Mitosis vs. Meiosis
Drawing worksheet
Choose two colors
And walk yourself through the steps of Mitosis
Answer the exit ticket Question and get my initials to receive your grade.
1st Test & Spiral Check will be on block day
(Wednesday/Thursday)!