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cell cycle

bio

QuestionAnswer
What limits the cell size? Diffusion, DNA, surface area-to-volume.
Why do cells maintain a smaller size? To maintain efficiency.
What are chromosomes? Chromosomes are condensed forms of DNA formed after DNA is copied.
What are chromatids? Two identical pieces of DNA.
How are chromatids held together? Chromatids are held together by a protein disk called a centromere.
What are homologous chromosomes? Homologous chromosomes exist in pairs called homologous chromosomes. Each of the homologous comes from each parent.
What is the longest phase of the cell cycle? Interphase.
What happens during interphase? DNA is copied.
What are the parts of interphase? G1, S, and G2.
What happens during cytokinesis? The cytoplasm divides.
What happens at the "end" of the cell cycle? The 2 identical daughter cells start the cell cycle over in the interphase.
What is the purpose of the cell cycle? Growth and repair of organisms, cell differentiation in embryos.
What is prophase? "P for prepare" Spindle fibers form, nuclear envelope disappears, and chromosomes condense.
What is metaphase? "M for middle" Spindle fibers attach to the centromeres and chromosomes move to the middle.
What is anaphase? "A for apart" Centromeres split, sister chromatids pull apart and move to opposite ends of cell.
What is telophase? "T for two" Two nuclei form at opposite ends of cell and spindles fibers dissolve and nuclear membranes form.
What phases are nuclear division? Prophase and metaphase.
What phases are mitosis? Anaphase and telophase.
Created by: CoraBaker
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