What do you call the process by which the cell nucleus breaks down and two new, fully functional, nuclei are formed? Omitosis ODNA replication meiosis Onucleation translation
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Step 1: The process of cell division that results in two daughter cells that are genetically identical to the parent cell is called mitosis. Show more…
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The period of the cell cycle when duplicated chromosomes are distributed into two nuclei and the cytoplasmic contents are divided; includes mitosis and cytokinesis. The microtubule apparatus that orchestrates the movement of chromosomes during mitosis. A mutated version of a proto-oncogene, which allows for uncontrolled progression of the cell cycle or uncontrolled cell reproduction. The region of the prokaryotic chromosome at which replication begins. The stage of mitosis during which mitotic spindle fibers attach to kinetochores. The stage of mitosis during which chromosomes condense and the mitotic spindle begins to form. A normal gene that controls cell division by regulating the cell cycle, which becomes an oncogene if it is mutated. Describes a cell that is performing normal cell functions and has not initiated preparations for cell division. The second synthesis phase of interphase during which DNA replication occurs. A wall formed between bacterial daughter cells precursor to cell separation. The stage of mitosis during which chromosomes arrive at opposite poles, decondense, and are surrounded by new nuclear envelopes. A gene that codes for regulatory proteins that prevent the cell from undergoing uncontrolled division. Metaphase plate. Septum. Oncogene. Phase. Metaphase. Tumor suppressor gene. Mitotic phase. Prophase.
Josee P.
Mitosis is the asexual process of nuclear division that occurs in eukaryotic cells. Mitosis results in two nuclei that are genetically identical. It can occur in either haploid or diploid cells. Usually mitosis is followed by cytokinesis, such that each of the two nuclei ends up in a different cell. Activity 1: Simulation of mitosis with clay chromosomes a. Get a piece of white paper from the large roll to protect the lab bench. b. Obtain modeling clay of two different colors. c. Make two large replicated chromosomes, one of each color (the chromatids need not be firmly attached). d. Make two small replicated chromosomes, one of each color, as above. e. Review your notes, the textbook, and the poster showing mitosis in the lab. f. Demonstrate the stages of mitosis with the clay chromosomes. (It helps if you draw the outline of cells, the spindle, etc. on the paper. g. After answering the questions below, demonstrate mitosis with clay chromosomes to the instructor. 1. If an individual chromosome was rotated 180°, around any axis, during metaphase of mitosis, would the resulting daughter cells be any different than they would without the rotation? Explain briefly. 2. What are microtubule-organizing centers (MTOC's), and what is their function in mitosis and meiosis? Do all cells have them? What are centrioles? Do all cells have them? Meiosis is the nuclear division that produces gametes in eukaryotic cells. Meiosis (accompanied by cytokinesis) results in four haploid cells that are each genetically different from one another.
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