I CAN: compare the phases of mitosis and meiosis. Mar. 8, 2018 You need: Clean paper / pencil Meiosis notes (2nd period only) Warm Up: Mental Math I CAN: compare the phases of mitosis and meiosis.

Mental Math Be reminded that Mental Math questions should be done IN YOUR HEAD. Do NOT write the question or any calculations – only write the final answer. Be sure to include the date and today’s “I can…” statement. The problems are listed on the following slides, but will not stay posted but a short time. They will not be repeated.

Mental Math 1.) $4.30 x 3 =

Mental Math 2.) 5 lbs of oranges at $2.50/lb = $____

Mental Math 3.) 49 divided by 7 =

Mental Math 4.) 8 – 12 + 18 =

Mental Math 5.) 37 x 2 =

Mental Math After checking to be sure your name, date, and “I can…” statement are included, students can TRADE and GRADE. Trade with someone at the same table – but you may not grade your own paper. On the paper you grade, write “Checked by (and your name)” using a different color. Each problem will be 10 points (I will spot you 50 points).

Mental Math 1.) $4.30 x 3 = $12.90

Mental Math 2.) 5 lbs of oranges at $2.50/lb = $12.50

Mental Math 3.) 49 divided by 7 = 7

Mental Math 4.) 8 – 12 + 18 = 14

Mental Math 5.) 37 x 2 = 74

Mental Math Remember to put the grade on the paper (and circle it). Pass it back to the owner – quietly! Focus on the teacher and LISTEN!

Agenda Mental Math Review Compare mitosis and meiosis through a packet

REVIEW MITOSIS MEIOSIS You should have created something like this yesterday!! -Feel free to have students RAISE their hand to explain each review slide.

IPMATC MITOSIS Interphase Prophase Metaphase Anaphase Telophase REVIEW Interphase Prophase Metaphase Anaphase Telophase Cytokinesis IPMATC A mnemonic to help remember the stages of mitosis. Iguanas Pee More Accurately Than Cats.

REVIEW PUZZLE TIME!! MEIOSIS

REVIEW Starting point: You want to start with one cell that has 100% of the genetic information (like a normal body cell). To keep things simple, we will work with a cell that has 4 chromosomes in a normal body cell.

REVIEW After we start… Before we can split to smaller groups, we need to copy the information. This reminds me of mitosis!

REVIEW Once copies have been secured (copy and original are sticking together!), then we line them up… Metaphase

REVIEW After lining up in the MIDDLE, we have to split. This is different than MITOSIS, though. How? In MITOSIS, the chromosomes line up in the middle vertically and all four would split in half. But in MEIOSIS, they have split the total in half – not the chromosome and it’s copy!

REVIEW After the ONE nucleus splits into TWO nuclei, we still need to split the original chromosome from it’s copy.

REVIEW Lining up in the MIDDLE – like Metaphase…AGAIN!! This time they are ready to separate the original chromosome and it’s copy.

REVIEW Each chromosome (copy and original is separated. Now the TWO look like they are becoming FOUR.

REVIEW Did you reach the goal? Four cells and each has only ½ of the genetic material? Is the genetic material the same as each of the other cells? If not all of these cells have the same genetic information, is that bad or good? Why?

REVIEW Cheat / Hint: 64258173

MEIOSIS MITOSIS -NOT Mitosis (but similar) IPMATC twice? REVIEW -NOT Mitosis (but similar) IPMATC twice? -Used to create a cell that has ONLY 50% of DNA -Happens in the SEX ORGANS -Allows for different combinations of DNA -IPMATC (phases) -Used to create a cell with 100% of DNA -Happens on the toes, nose, all over the body -Allows for exact copies of cells

Let’s make a comparison packet NEW VS

Let’s make a comparison packet Each student will need TWO worksheets. VS

IPMATC Body cells Exact copy 100% Decorate the cover Add color Maybe put in a few “reminders” like mine! Body cells Exact copy IPMATC 100%

Sex cells 50% DNA 50% I-(PMAT 1)- (PMAT 2)-C

Video: Amoeba Sisters Meiosis https://www.youtube.com/watch?v=VzDMG7ke69g

Put each action into your Venn Diagram You will have only 10 minutes to write each item into the Venn Diagram You may speak to your elbow-partner (NOT others!!!) You may use notes/books. Remember – each item must match MITOSIS, MEIOSIS, or BOTH Write it NEATLY into the diagram (Ms.Garris will be checking).

Where does it belong? Write all 24 into your Venn Diagram Copy on each table

Now – to the book. Page 412-421 in the textbook…BE GENTLE! Define the terms found on page 412 (9 terms) Explain the ADVANTAGE of sexual reproduction. Explain the DISADVANTAGE of sexual reproduction.

Parent Cell This is just a visual. Students need to add color to THEIR OWN page. Be consistent – so use the SAME colors for each phase. Parent Cell

Prophase I Again, this is just an example. Students can choose their own colors – but use the same colors for each phase. Prophase I

Video: Amoeba Sisters Genetics https://www.youtube.com/watch?v=8m6hHRlKwxY

Homework Be sure to finish your cover and Venn Diagram. Complete the bookwork (9 definitions and 2 questions). There may be a QUIZ!!!