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 mistake. Why do chromosomes condense before
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_____ Chapter 8-1: Cell Growth and Division Does your body grow by adding more cells‚ or by individual cells growing larger? what is the connection between surface area of a cell and how quickly the cell can exchange water‚ oxygen‚ food and wastes? what is the connection between volume of a cell and how quickly the cell uses up oxygen and food and produces wastes? What happens to surface area and volume as a cell gets larger? Describe the two main reasons why cell size is limited Compare
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There are quite a few variations between normal and tumor cell division. Normal cell division can be broken into four phases: G1‚ S‚ G2‚ and M. During the G1 phase‚ RNAs are produced‚ proteins are synthesized and through the P53 gene (also known as the “Guardian of the Genome”)‚ cells are checked for damage and those that are found are forced to go through apoptosis where the cells are forced to “commit suicide” to prevent replication. Through the S phase‚ the DNA is duplicated and in the G2 phase
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the female parent. 2. Highlight the letter of each way to describe a diploid cell. a. 2N b. Contains two sets of homologous chromosomes c. Contains a single set of homologous chromosomes d. A gamete 3. Highlight the letter of the number of chromosomes in a haploid cell where 2n=8 . a. 8 b. 4 c. 2 d. 0 4. Is the following sentence true or false? The diploid cell that enters meiosis becomes 4 haploid cells at the end of meiosis.false 5. How does a tetrad form in prophase I of meiosis
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Number of Cells in Part 1 Number of Cells in Part 2 Interphase 11 9 Prophase 7 4 Metaphase 5 3 Anaphase 9 7 Telophase 4 3 Cytokinesis 2 2 Create a Graph that represents the time spent in each stage of the cell cycle. Stage Time Spent in the 1st stage Time spent in the 2nd stage Interphase 21% 25% Metaphase 13% 7% Anaphase 9% 16% Telophase 19% 18% Cytokinesis 20% 23% 18% 11% Hypothesis After researching‚ I predicted that I would see different numbers of cells (which are
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continue lab: Investigating Osmosis _ determine molarity of unknown solutions _ plot % change in mass by sucrose molarity _ use a best-fit line to determine the molarity of a russet potato _ write discussion of results · use CER · use vocabulary appropriately! _ due on January 15th _ pick up copy of graphic organizer: the Cell Cycle _ write NEWS assignment _ due tomorrow!!! _ read pages 209 – 216 _ What is the relationship between chromatin and chromosomes? _ Complete the Cell Cycle
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Lab 11: Mitosis Mitosis is a part of the cell cycle process by which chromosomes in a cell nucleus are separated into two identical sets of chromosomes‚ each in its own nucleus. Mitosis has several phases during the cell cycle. The experiment obligated pictures of onion root tips under the microscope. The pictures had cells and chromosomes. The pictures also had different phases of mitosis in them. As my hypothesis‚ cells stay in the interphase the longest. To begin the experiment‚ there were pictures
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Cell Cycle Conclusion A mitosis lab was recently done. An experiment was performed that studied the each phase in the cell cycle.The hypothesis for this lab stated‚ "Interphase will be the longest phase and anaphase will be the shortest phase.” Mitosis is the process where of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus. The cell cycle is the cycle of growth and asexual reproduction of a cell‚ consisting of interphase
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Degeneration in Aged Telomerase-deficient Mice Jaskelioff et al.‚ Nature‚ January 2011 This study looked at the effects of telomerase activation on the tissues of prematurely-aged adult mice. The telomerase enzyme‚ TERT-ER‚ is not expressed in the cells of these mice. The group induced (turned on) expression of TERT-ER by exposing mice to the compound 4-OHT‚ 4-hydroxytamoxifen (see definitions on next page). This treatment rebuilt the telomeres in the mice that had been damaged with age‚ as well
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Lab Manual—Version 1.1 Introductory Anatomy & Physiology © 2012‚ eScience Labs‚ LLC. All Rights Reserved www.esciencelabs.com • 888.375.5487 Table of Contents Anatomy & Physiology Version 1 Preface: Introduc on to the Fetal Pig Lab 1: The Key to Reproducible Science Lab 2: Cell Structure and Func on Lab 3: Mitosis and Meiosis Lab 4: Diffusion and Osmosis Lab 5: Tissues and Skin Lab 6: The Skeletal System Lab 7: The Muscular System Lab 8: The Nervous System Appendix: Good Lab Techniques
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