daughter cells. In cells without a nucleus‚ the cell cycle occurs via a process termed binary fission. In cells with a nucleus‚ the cell cycle can be divided in three periods: interphase—during which the cell grows‚ accumulating nutrients needed for mitosis preparing it for cell division and duplicating its DNA—and the mitotic phase‚ during which the cell splits itself into two distinct cells‚ often called "daughter cells" and the final phase‚ cytokinesis‚ where the new cell is completely divided. The
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reaches an isotonic state (or equilibrium). At that point‚ molecules will move equally across the membrane. 10-1 Cell Growth surface-area-to-volume-ratio: the ratio of surface area to volume cell division: division of a cell (also called mitosis) Explain why larger organisms are made of many small cells rather than one large cell‚ emphasizing the concept of a large surface-area-to-volume ratio. - It is more efficient for an organism to be made of many small cells so as many nutrients
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Results: In Allium cepa‚ the cell walls surrounding the cells were generally a rectangular shape and somewhat in columns. The cell walls were very distinct because they were dark purple. Most of the cells were in interphase. Here‚ the nucleus could clearly be seen‚ taking up about one third of the space inside the cell. Most cells in interphase had one nucleolus inside the nucleus‚ but some had multiple. The nuclei were pink because of the stain and the nucleoli were a much darker pink. The cytoplasm
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Prokaryotic chromosome contains mostly DNA and some associated proteins Asexual reproduction requires a single parent; offspring are genetically identical to parent. EUKARYOTES Meiosis and Mitosis MEIOSIS Meiosis is essential for sexual reproduction and therefore occurs in all eukaryotes MITOSIS process in which a eukaryotic cell separates the chromosomes in its cell nucleus into two identical sets in two daughter nuclei. It is generally followed immediately by cytokinesis
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Directions: Complete the following quiz‚ which will be submitted to your instructor for a grade. Multiple choice: Select the best answer for each of the following: For questions 1-4‚ you need to know that the grey wolf has a diploid chromosome number of 78. Question 1: What is the haploid number for the grey wolf? User’s Answer: 39 Question 2: How many chromosomes are there in one full set of chromosomes in the grey wolf? User’s Answer: 39 Question 3: How many sets of chromosomes
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INTRODUCTION INTO SEEDS AND FLOWERS REVIEW+MORE The cycle of life for a plant starts off as a seed. The seed goes through mitosis and turns into a nature plant‚ which sometimes may produce flowers and fruits. Fruits are where the new seeds can be found‚ continuing the life cycle. A monocot seed with 2 genetic codes (2N) would grow by mitosis. The growth by mitosis would lead to the growth of the apical tips. The meristem cells (stem cells) keep dividing. Then the zone of elongation‚ the plant
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Is Interphase part of mitosis? Explain your answer. * Interphase is NOT a part of mitosis because it’s basically just a preparation for mitosis and not actually mitosis. Mitosis is when the diploids are dividing and in interphase this doesn’t happen. 44. Draw Prophase‚ Metaphase‚ Anaphase‚ and Telophase/Cytokinesis and explain what happens during each stage [BACK OF PAPER] 45. Compare and contrast mitosis and meiosis * Mitosis: cell divides only once and the result
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conditions 2. What are six types of asexual reproduction? (2pts) Mitosis‚ Binary fission‚ Budding/ Runners(plants)‚ Spore formation‚ Fragmentation/Regeneration‚ Vegetative propagation 3. What are two types of sexual reproduction? (2pts) Meiosis‚ Conjugation 4. What types of cells are produced through mitosis? Meiosis? (2pts) Body Cells 5. How many divisions are there in mitosis? Meiosis? (2pts) one 6. Cells produced through mitosis are genetically identical daughter cells‚ whereas cells produced
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scientist and doctors use this information to find a permanent cure or a better way to stop cancer? The vague knowledge about how cancer is formed is that our healthy genes are suddenly mutated. They are most likely mutated during a process called mitosis. Mitosis is apart of the cell life cycle. First‚ a cells
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Background DNA is an abbreviation for deoxyribonucleic acid‚ but it is usually known by its initials alone. DNA is found in practically all living organisms‚ and it is now known to carry genetic information from one cell to the next‚ and from one generation to the next. The units of inheritance‚ called genes‚ are actually sections of the DNA molecule. Nuclei of the cells of higher organisms contain thread-like bodies called chromosomes‚ which consist of DNA‚ wrapped around proteins. So understanding how
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