There are two types of nuclear division include mitosis and meiosis. Mitotic cell division is involved in the formation of an adult organism from a fertilized egg‚ asexual reproduction‚ regeneration‚ and maintenance or repair of body parts. Mitosis typically results in new somatic‚ or body cells. Meiosis results in the formation of either gametes in animals or spores in plants. The cells formed have half the chromosome number of the parent cell. Mitosis is best observed in cells that are growing at
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• Why are the process of mitosis and meiosis both important to a living organism? Living organisms need cell division in order to grow and reproduce. Mitosis and meiosis are two types of cell division. Mitosis occurs in vegetation cells‚ while meiosis occurs in reproductive cells of animals. In mitosis‚ a parent cell divides into two identical daughter cells that are the same as the parent cell. Meiosis produces four daughter cells that contain half of the genetic information of the parent
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(synthesis phase) of the cell cycle; halving of that genome during mitosis (M phase). The period between M and S is called G1; that between S and M is G2. So‚ the cell cycle consists of: G1 = growth and preparation of the chromosomes for replication; S = synthesis of DNA [see DNA Replication] and duplication of the centrosome; G2 = preparation for M = mitosis. When a cell is in any phase of the cell cycle other than mitosis‚ it is often said to be in interphase. Control of the Cell Cycle
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(6 problems) ___Ch. 8 Mitosis Introduction (FIB & diagrams) ___Ch 8 Mitosis & Meiosis (FIB) complete ___Diagram #3 Phases of Cell Cycle Pie Chart ___Diagram #9 Cytokinesis – Plant & Animal ___Diagram Meiosis #5 Metaphase & Crossing Over ___Diagram Meiosis #6 Egg & Sperm Dev’t (p 155) ___Diagram: All Stages of Cell Cycle‚ Mitosis (loose leaf) ___Diagram: Zygote Development (page 683) ___Chart Comparing Mitosis/Meiosis ___Concept Map – Comparing Mitosis & Meiosis ___4.5 Common Assessment
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deoxyribonucleic acid‚ DNA. Objectives Upon completion of this laboratory you will be able to: 1. list the similarities and differences between mitosis and meiosis. 2. describe and recognize the stages of mitosis under a microscope or on models. 3. know the events that occur during each stage of mitosis and meiosis. 4. define the boldface terms. Chromosomes:
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Virtual Lab 1: Virtual Microscopy A. Estimate the size (length and width) of these microscopic objects in micrometers (microns): 1. An E. Coli cell. 3x 0.6 μm = 1.8 μm 2 A mitochondrion. 4x 0.8 μm = 3.2 μm 3. A Red blood cell. 8 μm 4. A virus. 220 nm = 0.00022 μm 5. A water molecule. 275 pm = 0.000275 μm B. 1 Describe three differences between prokaryotic and eukaryotic cells. The three differences between prokaryotic and eukaryotic cells are: Eukaryotic cells contain a nucleus inside
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W4Q1 Meiosis is the process by which cells divide and create living creatures. Without meiosis we cannot have the process of mitosis‚ which is the process by which cells of tissue are created for living creatures. When meiosis occurs 4 daughter cells are created‚ while only 2 are created in mitosis. With the creation of 2 daughter cells the new cells will be similar to the parent cell‚ but will have differences‚ as there more parent cells involved. When mitosis occurs the daughter cells will be
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Title: Mitosis and Meiosis Abstract: There are two types of nuclear division‚ mitosis and meiosis. Mitosis is usually used for the growth and replacement of somotaic cells‚ while meiosis produces the gametes or spores used in an organism’s reproduction. Hypothesis: Mitosis occurs in whitefish blastula and onion root tip‚ and it is easily observable. Meiosis and crossing over occurs in the production of gametes and spores. Materials: This lab required prepared slides of whitefish blastula
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that occurs during meiosis probably evolved as a mechanism to repair __________ damage. 8. Sexual reproduction is significant in increasing genetic ______. 9. Unlike meiosis I‚ there is no doubling of ___ before the start of meiosis II. 10. Evidence of crossing over can often be seen under the light microscope as an X-shaped structure known as ________. 11. The fusion of male gamete cells with female gamete cells is called A. syngamy B. meiosis C. mitosis D. recombination
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The Building Blocks of Life Worksheet Part 1: Mitosis and Meiosis Short-Answer Response Why are the process of mitosis and meiosis both important to a living organism? The process of mitosis and meiosis are both important to a living organism because without them a cell would not be able to reproduce. Mitosis is an asexual process used to replace old and dead cells with new ones by dividing into two identical daughter cells. Meiosis‚ however‚ is the step that makes sexual reproduction possible
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