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#49 Warm UP. Why do you think our cells need to be able to replicate themselves?. Change the # on your sheet to 49. Activity – Cell Division Observations. Part 1 - Diagrams Look at the two diagrams. One is mitosis, and one is meiosis. Write captions in the boxes. - PowerPoint PPT Presentation
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#49 How do cells divide?#49 How do cells divide?
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
#49 How do cells divide?#49 How do cells divide?
#49 Warm UP#49 Warm UP
Why do you think our cells need to be able to replicate themselves?
Why do you think our cells need to be able to replicate themselves?
Change the # on your sheet to 49
#49 How do cells divide?#49 How do cells divide?
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
#49 How do cells divide?#49 How do cells divide? Activity – Cell Division
ObservationsPart 1 - Diagrams1. Look at the two diagrams. One is mitosis, and
one is meiosis.2. Write captions in the boxes.Part 2 – Animated Interactive1. Get a laptop for you and your partner and go
the Cell Division Link at the school website.2. Answer the questions on the notes sheet.Part 3 – Comparing1. Try to fill out the table in the notes.
Extension:1.Work on the Regents Practice HOMEWORK.
2.Work on VOCAB
Extension:1.Work on the Regents Practice HOMEWORK.
2.Work on VOCAB
#49 How do cells divide?#49 How do cells divide?
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
#49 How do cells divide?#49 How do cells divide?
Mitosis vs. MeiosisMitosis vs. Meiosis
#49 How do cells divide?#49 How do cells divide?
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
#49 How do cells divide?#49 How do cells divide?
Animation QuestionsAnimation Questions
1. In step 3 of Meiosis, what do you see happening to the paired-up chromosomes?
2. At the end of all of the steps, how do the daughter cells (cells at the end of the processes) compare to each other?
Mitosis:
Meiosis:
3. How do they compare to the parent cells?
Mitosis:
Meiosis:
#49 How do cells divide?#49 How do cells divide?
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
#49 How do cells divide?#49 How do cells divide? How does meiosis lead to genetic
variation?How does meiosis lead to genetic
variation?• Crossing-over and recombination occur during meiosis:
parts of the chromosomes overlap and exchange
• Every gamete produced will have a new and different genetic combination of the parent’s genes!
Meiosis only happens to cells in
the ovaries of females and in the
testes of males
#49 How do cells divide?#49 How do cells divide?
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
MITOSIS MEIOSIS
How many cells do you end with?
How much DNA compared to parent?
Same or different DNA?
How many divisions?
Asexual or sexual?
What is it used for?
#49 How do cells divide?#49 How do cells divide?
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
#49 How do cells divide?#49 How do cells divide?
What would most likely result if mitosis was not accompanied by cytoplasmic division?
1) two cells, each with one nucleus 2) two cells, each without a nucleus 3) one cell with two identical nuclei 4) one cell without a nucleus
What would most likely result if mitosis was not accompanied by cytoplasmic division?
1) two cells, each with one nucleus 2) two cells, each without a nucleus 3) one cell with two identical nuclei 4) one cell without a nucleus
Regents PracticeRegents Practice
#49 How do cells divide?#49 How do cells divide?
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
#49 How do cells divide?#49 How do cells divide?
REGENTS PRACTICEREGENTS PRACTICE
#49 How do cells divide?#49 How do cells divide?
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
Agenda:
Warm UP:5 min
Activity:Observing Cell
Division20 min
Minilesson:Meiosis &
Mitosis15 min
Reflection:5 min
#49 How do cells divide?#49 How do cells divide?
How does meiosis contribute to the variation present among the offspring of sexually reproducing organisms?
HOMEWORK• Regents Practice – Mitosis &
Meiosis• Study Island #2• VOCAB
How does meiosis contribute to the variation present among the offspring of sexually reproducing organisms?
HOMEWORK• Regents Practice – Mitosis &
Meiosis• Study Island #2• VOCAB
REGENTS PRACTICEReflection Reflection
