D. energy is supplied by fat
Answer:
Its tasks include packaging DNA into a smaller volume to fit within the cell, strengthening DNA to facilitate mitosis and meiosis, and controlling expression. In eukaryotic cells, chromatin is located in the nucleus, whereas in prokaryotic cells, it is found in the cytoplasm.
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The glial cells forming myelin sheaths are called oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. The gaps (approximately 1 micrometer wide) formed between myelin sheath cells long the axons are called Nodes of Ranvier.
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