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4 Warm Up: Different Phases 2-18-15 LT Learn vocabulary associated with mitosis I can distinguish the difference between neighboring phases of mitosis Q1. What is the end result of mitosis? Q2. What is the last step of Mitosis? 4 Warm Up: Different Phases 2-18-15 LT Learn vocabulary associated with mitosis I can distinguish the difference between neighboring phases of mitosis Q1. What is the end result of mitosis? A1. Two identical sets of chromosomes Q2. What is the last step of Mitosis? A2.Telophase Goals -Learn vocabulary associated with mitosis -Distinguish the difference between neighboring phases of mitosis Notes 1: Mitosis Vocabulary 2-18-15 You will look up 2 words and then present them to the class and allow them to write the definitions Sister chromoatids Mitosis Meiosis Centromere DNA Centrioles Chromosomes Spindle fibers Chromatin Mitosis Meiosis DNA Chromosome Chromatin Sister Chromatids Centromere Centrioles Spindle Fibers Activity: Compare and Contrast As a group, you will be assigned one phase of mitosis. You are to become an expert on that phase (know it through and through). Then you are to explain major differences between the phase before it and after it. This should be written on one paper for the group. Put all names on it. 4 Warm Up: Different Phases 2-18-15 LT Learn vocabulary associated with mitosis I can distinguish the difference between neighboring phases of mitosis Q1. What is the end result of mitosis? Q2. What is the last step of Mitosis? Q3. What is the difference between chromosome and chromatin? Q4. Explain the main difference between anaphase and telophase. 4 Warm Up: Different Phases 2-18-15 LT Learn vocabulary associated with mitosis I can distinguish the difference between neighboring phases of mitosis Q3. What is the difference between chromosome and chromatin? A3. Both strands of DNA, chromatin is found in interphase, chromosome is a compact (folded) version of chromatin. Q4. Explain the main difference between anaphase and telophase. A4. Anaphase the chromosome is approaching the cell's poles and there is no nuclear envelope. Telophase the chromosomes are now at opposite poles with a nuclear envelope around them. Mitosis: Cell division during which chromosomes are equally distributed to the two identical daughter cells that are formed; results in growth. Meiosis: Cell division in which one diploid cell produces four hapliod cells calle ed sex cells or gamates, which have half the # of chromosomes as a parent cell. DNA: Deoxyribonucleic acid; master copy of an organism's information code, which is passed on each time a cell divides and also from one generation to the next Chromosomes: Tightly packaged DNA (chromatin) that carries genetic information. Chromatin: Long, tangled strands of DNA found in the interphase nucleus of eukaryotic cells. Sister chromatids: identical halves of the duplicated parent chromosome formed durning interphase that form an X structure. These exact copies are joined at a centromere. Centromere: The structure that hold the sister chromatids together. Centrioles: pair of cylindrical structures made of microtubules that migrate to opposite ends of the cell durning prophase. Spindle fibers: thin fiber that forms from the centrioles and attaches to the centromere during prophase (prometaphase) and then shortens during anaphase pulling sister chromatids apart and to opposite pulls.
