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- What are three functions of the cell nucleus? What are two functions of a plant cell vacuole?the light micrograph shows dividing cells near the tip of an onion root. identify and encircle a cell in each of the following stages: phrophase , prometaphase, metaphase ,anaphase and telophase. describe the major events occuring at each stage.How does mitosis differ between the onion root cells and the whitefish blastula cells?
- What does it mean when chromosomes are said to condense during prophase of mitosis? How long are chromosomes after condensation is complete? How big is a typical dividing cell in a root or shoot? If a chromosome were still 20 μm long after condensation, would it be possible for division to pull half of it to one end of the cell and the other half to theother end?What type of cell division occurs as a megaspore develops into a female gametophyte? Explain.What is the rate of cyclosis of one plastid per second? What factors can change the rate of cyclosis in plant cells?
- The image shows a section of a root tip of Broad Bean with cells from the region of cell division, just behind the root cap. Five cells have been numbered (1-5). Which statements accurately describe the mechanism by which the cells ensure that chromosomes are passed successfully to the next generation? Select ALL that apply. A - Cell 2 is undergoing anaphase to separate the duplicated chromosomes to opposite poles of the cell. B - Cell 1 lacks chromosomes and cannot contribute genetic material to future cells. C - Cells 4 and 5 have recently divided and are now haploid, containing half of a full set of chromosomes after division. D - Cells 4 and 5 have recently divided and have a cell plate that formed between them. E - Cell 3 is providing a mechanism for increasing genetic diversity in the daughter cells.You view a mature, living plant cell such as an epidermal cell under the light microscope. You view the cell at sufficiently-high magnification and you have also stained the cell for chromatin. The cell has a nucleus, yet you cannot see chromosomes, at least in their typical ’sausage-formed’ shape as we all know them from textbooks. Why is that?What is multinucleate cell called?
- The cell above is a lung cell of a salamander. In whichstage of mitosis is it? What are the structures visible ingreen and blue fluorescence?What is different about mitosis in the plant cell as compared to the animal cell? Give two differences. please explain and do not copy from googleIn animals, which cells are produced by mitosis? by meiosis? Which cells are produced by these processes in plants?