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Review!

Review!. Do You Know Cell Cycle? Cell Cycle Practice Quiz Cell Division GIZMO. DO YOU KNOW CELL CYCLE?. Get out your worksheet to correct it!. G1 phase of interphase(4 DNA strands) DNA is in chromatin form in G1 .

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Review!

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  1. Review! Do You Know Cell Cycle? Cell Cycle Practice Quiz Cell Division GIZMO

  2. DO YOU KNOW CELL CYCLE? Get out your worksheet to correct it!

  3. G1 phase of interphase(4 DNA strands)DNA is in chromatin form in G1

  4. G2 phase of interphaseDNA is in chromatin form in G2 4 DNA in chromatin form8 Sister Chromatids

  5. Prophase of MitosisDNA coils up, nucleus disappears, centrioles form 4 DNA in chromosome form8 Sister Chromatids

  6. Metaphase of MitosisDNA lines up in the middle, spindle fiber attach to centromere 4 DNA in chromosome form8 Sister Chromatids

  7. Anaphase of MitosisDNA get ripped apart, spindle fiber move towards centromere 8 DNA in chromosome form

  8. Telophase of MitosisDNA begins to uncoil, nucleus begins to form (TWO) 8 DNA in chromatin form

  9. Cytokinesis of the Cell Cycle Cytoplasm splits! 4 DNA in chromatin form in each new cell

  10. What part of the cell cycle, growth or division does the cell spend the majority of its life? • Interphase • What would happen if a cell did not make a copy of its DNA before it divided? • Each new cell would not get a complete set of DNA (which you need to live) • In prophase are the two chromatids of each chromosome genetically identical? How do you know? • Yes sister chromatids should be identical. One chromatid is made from the other. They are designed to be exact copies

  11. 4. Why is it important for the chromosomes to line up during mitosis? • Metaphase allows the chromosomes to line up in the middle of the cell – basically organizing them so that they can be divided evenly and equally 5. Two stages of mitosis are virtually the opposite of each other, which two? • Prophase and telophase 6. Are the chromosomes and genes in the daughter cell produced by mitosis and cytokinesis the same as or different from the chromosomes and genes in the original cell? • They should be exactly the same 7. Based on the drawings, was this an animal or plant cell’s cell cycle? How can you tell? • Animal. The cell did not have a cell wall. Further in cytokinesis the cell pinched inward (cleavage furrow)

  12. Cell Cycle Practice Quiz! Get out your quiz to correct!

  13. Drawings Done on white board!

  14. Questions • Binary Fission • G1 (growth & proteins are being made)S (synthesizing DNA)G2 (more growth & protein making) • Mitosis/ Asexual reproduction • Cytokinesis • Plants forms cell plates which forms in to the cell wallAnimal cell pinches inward (known as cleavage furrow) to create two new cells • A. ChromatinB. Sister ChromatidsC. Chromosomes D. Centromere

  15. Cell Division GIZMO Everyone should correct their answers!

  16. Questions • Grow! Interphase • Duplicate DNA (S phase of interphase) • Based on observations… • Refer to Do You Know Mitosis worksheet & Cell Cycle Quiz • Interphase – S • Prophase • Anaphase • To send out spindle fibers to attach to centrioles • Draw on Board • 46 • Faster • Increasing • Cancer 17. Interphase18. Prophase

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