SLIDE 1
Mitosis with Yarn!
- Mr. Levine
Stages of Mitosis to Model
- Interphase (Growth + Synthesis)
- Prophase
- Metaphase
- Anaphase
- Telophase
- Cytokinesis
- Mnemonics (memory tricks)?
Mitosis with Yarn! Mr. Levine Stages of Mitosis to Model - - PowerPoint PPT Presentation
Mitosis with Yarn! Mr. Levine Stages of Mitosis to Model - - PowerPoint PPT Presentation
Mitosis with Yarn! Mr. Levine Stages of Mitosis to Model Interphase (Growth + Synthesis) Prophase Metaphase Anaphase Telophase Cytokinesis Mnemonics (memory tricks)? I nteresting P eople M ake A T errific C
SLIDE 2
SLIDE 3
Cell has grown, ready to divide!
- Hanging in the nucleus are copies of each chromosome
- Goal: make two cells with complete chromosome sets
- What needs to happens first?
SLIDE 4
Interphase - Synthesis
- DNA gets copied
NEXT?
SLIDE 5
Prophase
- Nuclear membrane dissolves
- DNA condenses
- Centrioles/Spindles form (from cytoskeleton)
NEXT?
SLIDE 6
Metaphase
- Chromosomes, organized by centrioles
and spindle fibers, line up on metaphase plate
NEXT?
SLIDE 7
Anaphase
- Chromatids separate and are pulled to
- pposite ends of cell by centrioles/spindles
NEXT?
SLIDE 8
Telophase
- Chromosomes spread back out
- Nuclear envelopes reappear
- Centrioles/Spindles disappear (back to cytoskeleton)
Final step?
SLIDE 9
Cytokinesis - Animals
- Cleavage furrow forms, cells separate
SLIDE 10
Cytokinesis - Plants
- Cell plate forms between daughter cells
SLIDE 11
Now it’s your turn!
- Yarn in packets
– Short Red (2x) – chromosomes (6 cm) – Long Red (2x) – chromosomes (12 cm) – Short Blue (2x) – chromosomes (6 cm) – Long Blue (2x) – chromosomes (12 cm) – Green (8x) – Spindle Fibers (40 cm) – Purple (2x) – Nuclear Membranes (50 cm) – Yellow (1x) – Cell Membrane (200 cm)
- Points
– Diagram to hand in – Quiz Stamp… what’s this?
Please don’t tie pieces together!
SLIDE 12
Cell Set Up
- Cell Membrane = Yellow yarn
- Nuclear membrane = Purple yarn
- Spindle Fibers = Green yarn
- Chromosomes = Red & Blue yarn