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Definitions (29)
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animal cells
eukaryotic cells that contain various membrane-bound organelles. Allele
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apoptosis
a controlled sequence of steps in which cells signal self termination. Asters
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biology
the study of living organisms. Cell
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cellular respiration
a process by which cells harvest the energy stored in food. Cell Biology
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cell cycle
the life cycle of a dividing cell. It includes Interphase and the M phase or Mitotic phase (mitosis and cytokinesis). Cell Membrane
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cell theory
one of the five basic principles of biology. It states that the cell is the basic unit of life. Centrioles
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centromere
a region on a chromosome that joins two sister chromatids. Chromatid
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chromatin
mass of genetic material composed of DNA
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chromosome
a long, stringy aggregate of genes that carries heredity information (DNA) and is formed from condensed chromatin.
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cilia and flagella
protrusions from some cells that aid in cellular locomotion. Cytokinesis
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