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The Vertebrate Trait Ontology (VT) is being developed as a collaborative effort between the Rat Genome Database at the Medical College of Wisconsin (RGD,, Mouse Genome Informatics at the Jackson Laboratory ( and the Animal QTL database at Iowa State University ( For more information about this vocabulary, or to request additions or changes, please contact us (

Term:vas deferens morphology trait
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Accession:VT:0002769 term browser browse the term
Definition:Any measurable or observable characteristic related to the shape, structure, color, or pattern of the secretory duct of the testicle that carries spermatozoa, running from the epididymis, of which it is the continuation, to the prostatic urethra, where it terminates to form the ejaculatory duct.

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  vertebrate trait 2384
    organ system trait 1553
      reproductive system trait 66
        reproductive system morphology trait 66
          male reproductive system morphology trait 8
            vas deferens morphology trait 0
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