
An undulipodium (a Greek word meaning `swinging foot`) or a 9+2 organelle is a motile filamentous extracellular projection of eukaryotic cells. It is basically synonymous to flagella and cilia of the eukaryotic cells. In fact the name was coined to differentiate from the homologous structures present in prokaryotic cells. It is structurally a co.....
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http://en.wikipedia.org/wiki/Undulipodium

A flexible whiplike intracellular extension of many eukaryotic cells, with a characteristic nine-fold symmetry, an arrangement of nine paired peripheral microtubules and one central pair, often termed 9 + 2 symmetry; it appears to grow out from a basal body (kinetosome) in the cell and is a fundamental component of the eukaryotic cell. Both the cil...
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http://www.encyclo.co.uk/local/20973

Type: Term Pronunciation: ŭn′dū-li-pō′dē-ŭm, -ă Definitions: 1. A flexible whiplike intracellular extension of many eukaryotic cells, with a characteristic ninefold symmetry, an arrangement of nine paired peripheral microtubules and one central pair, often termed 9 + 2 symmetry; it appears to grow out from ...
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http://www.medilexicon.com/medicaldictionary.php?t=95596

Another term for a eukaryotic flagellum.
Found on
http://www.ucmp.berkeley.edu/glossary/glossary_4.html
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