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1. Why is the onion root used to demonstrate mitosis?
2. Why is the Whitefish embryo used to demonstrate mitosis?
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Solved in 2 steps
- 1. Draw Interphase and label cells in each stage of mitosis. 2. Draw prophase and label cells in each stage of mitosis. 3. Draw Metaphase and label cells in each stage of mitosis. 4. Draw Anaphase and label cells in each stage of mitosis 5. Draw Telophase and label cells in each stage of mitosis. 6. Draw Daughter Cells and label cells in each stage of mitosisWhat is true of mitosis?1. A cell undergoes two cell divisions.2 .The daughter cells produced are gametes.3.Hofblogous chromosomes are separated to produce four haploid daughter cells.4. Sister chromatids separate to produce two diploid daughter dells.Why are onion root tips and whitefish blastula used to study mitosis?
- Describe the similarities and differences between mitosis andmeiosis II.1.What is mitosis? cytokinesis? 2. Why is mitosis important to living organism? Cite three specific importance of this process in human. 3. How does mitosis maintain the chromosome number of species? 4. What is the difference between plant and animal mitosis? 5. In what case does mitosis become detrimental or fatal to human? Cite a concrete example.1.What phase of mitosis is this? 2.What is the indicated structure 1? chromosome chromosome with two sister chromatids centrioles/centrosome spindle fibres metaphase plate 3.If the diploid (2n) number of this cell is 8 how many chromosomes are present Answer. 4.If the diploid (2n) number of this cell is 8 how many sister chromatids are present Answer. 5.If the diploid (2n) number of this cell is 8 how many homologous pairs are present Answer.
- 1. Meiosis is called reduction division. Explain why and where the reduction occurs and how this changes ploidy? (2) 2. A mutation has occured in the DNA segment responsible for the G2/ M Checkpoint. if this mutation occured in a cell that was destined for the production of sperm, would it have any affect on potential offspring? (2) 3. What are the major differences between the events of mitosis and meiosis? (3)16. 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 | 2324) How many DNA molecules (double helices) are present in this cell on the right? What is the haploid number of this cell? Is this cell haploid or diploid? 10
- 21. What is the function of chiasma? A. links sister chromatid at mitotic metaphase B. links sister chromatids at meiotic metaphase I C. links pair of homologous chromosomes at meiotic metaphase I D. links pair of sister chromatids at meiotic metaphase II1) What phase of mitosis is this? Answer: 2) What is the indicated structure 1? select one. a. chromosome b. chromosome with two sister chromatids c. centrioles/centrosome d. spindle fibres e. metaphase plate 3)If the diploid (2n) number of this cell is 8 how many chromosomes are present? 4) If the diploid (2n) number of this cell is 8 how many sister chromatids are present? 5) If the diploid (2n) number of this cell is 8 how many homologous pairs are present?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°F
