microscope to observe and sketch plant cells and animal cells in various stages of the cell cycle. Equipment and Materials: Compound Microscope Laptops Prepared Slide of Onion (Allium) Root Tips Prepared Slide of Whitefish Mitosis BC Science 9 Text pg. 162-163 Part 1-Plant Cells Procedure: 1. Take a prepared slide of an onion tip root and observe it under low power (40X). Move the slide around until you have a section near the tip that is in clear focus. Now
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REVIEW FOR TEST 4: GENETICS CHAPTER 12 -1406 CHAPTER 8- 1408 MITOSIS 1. Define: genome‚ gene‚ chromosomes‚ chromatin‚ binary fission‚ homologous chromosomes‚ sister chromatids‚ daughter chromosomes‚ somatic cells‚ gametes‚ centromere‚ kinetochore‚ karyokinesis‚ spindle fibers‚ kinetochore microtubules‚ nonkinetochore microbules‚ centrosome‚ asters 2. List differences between eukaryotic and prokaryotic genome. 3. A chromosome consists of ____ (60%) and ____ (40%).
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There is two stages in M-phase; the first stage is called mitosis. Mitosis is the nuclear division of the cell‚ separating the two copies of the genome and forming daughter nuclei. There are four stages in mitosis: prophase‚ metaphase‚ anaphase and telophase. Multiple changes occur in prophase including the coiling of the chromatin into chromosomes‚ the disappearance of the nuclear envelope
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CHAPTER 13 OBJECTIVES The Basis of Heredity 1. Explain in general terms how traits are transmitted from parents to offspring. An organism’s traits and appearance are controlled by specific forms of proteins contained in DNA. When gametes are formed‚ the male and female parents pass along their DNA into their respective gametes. Fertilization fuses the gametes and combines the genetic contribution of each parent into the new offspring. 2. Distinguish between asexual and sexual reproduction
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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 E. synapsis 12. Diploid organisms use meiosis for the development of gametes. Meiosis consist of how many rounds of nuclear division? A. one B. two C. three D. four E. answer not given 13.
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Cell division consists of two processes: mitosis and cytokinesis. Mitosis— division of the nucleus and its chromosomes— is divided into five phases:prophase‚ prometaphase‚ metaphase‚ anaphase‚ and telophase. Mitosis is followed by cytokinesis‚ when the cytoplasm splits to form two separate daughter cells. The cytoplasm of a cell in late interphase contains two centrosomes‚ each of which may contain a pair of centrioles. In the nucleus‚ the chromosomeshave been replicated during S phase‚ but are
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Western Mindanao State University College of Science and Mathematics Zamboanga City Group No.: 02 Date Performed: April 21‚ 2014 Group Members: Date Submitted: April 25‚ 2014 Reales‚ Pharra Anthea O. Pendergat‚ Ellyssa Mae A. Pedroza‚ Rikko Jeremy C. Dinorog‚ Ivy Mae V. BIO 101 LABORATORY Activity No.: 4 Movements of Materials Across Membrane I. INTRODUCTION Many important reactions and processes in materials occur by the motion of atoms in the solid (transport)‚ which happens
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conditions Aerobic conditions 3 BLG1501/201/S2/2012 Question 10.3: Make labelled drawings to illustrate the different phases of mitosis in an animal cell with two chromosomes. (20) Answer Question 11.6: Tabulate the key differences between mitosis and meiosis. (14) Answer: Mitosis Meiosis DNA replication occurs during DNA replication occurs during interphase before mitosis begins interphase before meiosis 1 begins One division Two divisions Synapsis does not occur Synapsis occurs during prophase
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the tempo of their own division run amok‚ causing disease In a healthy body‚ cell division allows for: growth the replacement of damaged cells development from an embryo into an adult In sexually reproducing organisms‚ eggs and sperm result from: Mitosis Meiosis Cell Division and Reproduction 8.1 Cell division plays many important roles in the lives of organisms Organisms reproduce their own kind‚ a key characteristic of life Cell division is reproduction at the cellular level requires the duplication
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Part 2: Effects of Environment on Mitosis. Experimental Hypothesis: If we put onion root tips in IAA solution then the rate of Mitosis will increase. Null Hypothesis: There will be no difference Part 1- Post Lab Question If a cell contains a set of duplicated chromosomes‚ does it contain any more genetic information than the cell before the chromosomes were duplicated? No‚ because if it is duplicated‚ it would have the same number of chromosomes unless there was a
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