2. Diagram of the cell cycle (not cell division) for an organism with two chromosomes (n=2, 2n=4). Include; interphase (including the G1, S, G2 phases), mitosis and cell cycle checkpoints.
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Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
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- . If you were asked to complete the table with the correct answer, which of the following table would you chose? А. CHITERIA MITOSIS MEIOSIS 1. Na. of nuciear dimsion 2. Syriapaia/crossing over ECentromere of suster chromatids atanaphase Preseut separates Fresent M-attached/M-separates Haploid S. Na of chromosomes per daughter cell 6 Function Diplaid Growth. Rapair Growth. Repair and Reproduction B. CRITERIA MITOSIS MEIOSIS TNo, af nuclear darinion Synapsin/croing over 3. Centromere af sister chromatids at anaphase Absetit sepiarates Fresent -attached FNo. of daughter cells 5. No. of chromosomes per daughter cell 6 Function Diploid Haploid Growth, Eapair Growth, Repair and Reproduction C. CRITERIA MITOSIS MEIOSIS 1. No. of muclear division 2. Synapsis/crossing over 3. Centromereof sister chromatids at anaphane 4 Na, af daughter cells 5. No. of chromosoetes per daughter cell 6 Punction Absent Present separates MI-attached/Mli-separates Haploid Diploid Gruwth, Repair Reproduction D.…All of the following could be deduced from the table except CRITERIA MITOSIS MEIOSIS 1. No. of nuclear division 2. Synapsis/crossing over 3. Centromere of sister chromatids at anaphase 4 No. of daughter cells 5. No. of chromosomes per daughter cell 6 Function I. The mother cell in mitosis divides only once, while the mother cell in meiosis divides twice. II. Synapses only takes place in meiosis. III. Centromere of sister chromatids at anaphase separate in both mitosis and meiosis. The number of daughter cells in mitosis is 2, while meiosis is 4. V. Mitosis is haploid, meiosis is diploid. A. I, II, and III B. I, III, IV and V C. I, Il and IV D. I. II. II. V IV, • If you were asked to cormplete the table with the correct answer, which of the following table would you chose? А. CHITERIA MITOSIS MEIOSIS 1. No. of nuciear dimaion Synapais/cossing ove 3. Centromere of NIuzer chromatids atanaphase No. of daaghter cells PTESEnt MI-anached separates Present separates Haploid 5. No of…14.All of the following could be deduced from the table except CRITERIA MITOSIS MEIOSIS 1. No. of nuclear division 2. Synapsis/crossing over 3. Centromere of sister chromatids at anaphase 4 No. of daughter cells 5. No. of chromosomes per daughter cell 6 Function I. The mother cell in mitosis divides only once, while the mother cell in meiosis divides twice. II. Synapses only takes place in meiosis. III. Centromere of sister chromatids at anaphase separate in both mitosis and meiosis. The number of daughter cells in mitosis is 2, while meiosis is 4. V. Mitosis is haploid, meiosis is diploid. A. I, II, and III B. I, III, IV and V C. I, 1l and IV D. I. II. III. V IV, If you were asked to complete the table with the correct answer, which of the following table would you chose? A. CHITERIA MITOSIS MEIOSIS 1. No. of nuclear dimon Synapais/cossing ove 3. Centromere of NIRter chromatids atanaphase 7No. of daughter cells Present Fresent MI-attachedMuseparates separates Haploid 5. No of…
- 1. What cell division event is depicted above? (be as specific as possible) 2. What type of protein is found in the structure indicated by arrow 1?List down at least 4 differences between Mitosis and Meiosis 2. With a simple sketch, using colored pens provide an illustration (with label) of the cell that will show the comparison of: 1. Anaphase 1 and Anaphase 2 2. Metaphase 1 and Metaphase 24. Draw a cell in each of the following phases. Be sure to represent the major events of each phase and label structures. Prophase Prometaphase Metaphase Anaphase Telophase Mitosis Internet Lesson. Provided by: Biologycorner.com. License: CC BY-NC: Attribution-Noncommercial Located at: https://www.biologycorner.com//worksheets/mitosis.html
- 8. Fill in the table below to summarize the differences between MITOSIS and MEIOSIS MITOSIS MEIOSIS How many daughter cells produced? How many sets of divisions? Are daughter cells haploid or diploid? Are daughter cells identical or unique? Why do cells perform this type of cell division? Occur in somatic cells or germ cells? D. Focus 76% 52°F16. The diagram below shows a phase in meiotic cell division. 小 In which phase does this process occur? A. Metaphase I B. Anaphase I C. Metaphase II D. Anaphase II 17. The graph shows the change in the quantity of DNA in a cell during a reduction division (meiosis). quantity of DNA /arbitrary units 2- time A cell with one pair of chromosomes (2n = 2) undergoes meiosis. Which nucleus is formed as a result of this division? A D Рage 7 | 231.) Some of the events that occur during mitosis are as follows: 1. separation of sister chromatids to opposite poles 2. condensation of chromatin into compact chromosomes 3. alignment of chromosomes along the cell equator 4. reappearance of nuclear membrane Using the numbers above, match the above-mentioned events occurring during mitosis with the stages in which they occur. Prophase _____ Metaphase _____ Anaphase _____ Telophase 2.) Four different phases that occur during the mitotic phase of cell cycle are as follows: 1. prophase 2. telophase 3. anaphase 4. metaphase The correct order in which phases of the mitotic division occur after G2 phase is __________, _____________, ___________ and ___________.
- 3) The small beads (pink and blue) on the chomatids represent the segments of DNA that have been swapped between non-sister chromatids within a tetrad. What is the term for this exchange of genetic information that occurs in prophase 1? MEIOSIS I. Cytoplasm Nuclear membrane Nucleus Prophase IA. 1. Division of the cell nucleus, results in two daughter nuclei, each have the same number of chromosomes as the parent nucleus. 2. One two identical halves of a duplicated chromosome. 3. Fusion of haploid (n) gametes; results in the formation of a diploid (2)n zygote. 4. The breaking and rejoining of homologous (non sister) chromatids during early meiotic prophase I, resulting in an exchange of genetic material. 5. The diploid (2n) cell that results from the union of haploid (n) gametes in sexual reproduction. 6. The condition of having one set of chromosomes per nucleus. 7. The complex of DNA, proteins and some RNA that makes up eukaryotic chromosomes. 8. Structures in the cell nucleus, composed of chromatin and containing the genes. 9. An X-shaped site in a tetrad marking the location where homologous chromatids previously underwent crossing over. 10. A sex cell; in plants and animals, an egg or sperm. 11. Type of reproduction in which two gametes (usually, but not necessarily,…4. Interpret the following images (hint: first describe each as _n=________chromosomes.) A B a. Indicate which diagram shows the following: C one daughter nucleus after telophase of mitosis? one daughter nucleus after telophase of meiosis I? one daughter nucleus after telophase of meiosis II? one nucleus during prophase of mitosis? 88 P b. Which of these diagrams does not fit with the others? D n= n= n= _n= E _1_x Indicate how much DNA is in each compared to its respective gamete which has 1x amount of DNA. In what way is it different? X