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X

X chromosome
One of the two sex chromosomes, X and Y.
See also: Y chromosome, sex chromosome

Xenograft
Tissue or organs from an individual of one species transplanted into or grafted onto an organism of another species, genus, or family. A common example is the use of pig heart valves in humans.
Updated 26-Apr-07

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Last modified: Monday, February 01, 2010

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