Translocation

translocation /trans·lo·ca·tion/ (trans?lo-ka´shun) the attachment of a fragment of one chromosome to a nonhomologous chromosome. Abbreviated t.

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reciprocal translocation  the complete exchange of fragments between two broken nonhomologous chromosomes, one part of one uniting with part of the other, with no fragments left over. Abbreviated rcp.

robertsonian translocation  translocation involving two acrocentric chromosomes, which fuse at the centromere region and lose their short arms.

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trans·lo·ca·tion (trnsl-kshn, trnz-)

n.

Transposition of two segments between nonhomologous chromosomes as a result of abnormal breakage and refusion of reciprocal segments.

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Translocation

The transfer of one part of a chromosome to another chromosome during cell division. A balanced translocation occurs when pieces from two different chromosomes exchange places without loss or gain of any chromosome material. An unbalanced translocation involves the unequal loss or gain of genetic information between two chromosomes.

Mentioned in: Down Syndrome, Patau Syndrome, Prader-Willi Syndrome

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translocation,

n the rearrangement of genetic material within the same chromosome or the transfer of a segment of one chromosome to another nonhomologous one.

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translocation

the attachment of a fragment of one chromosome to a nonhomologous chromosome. See also chromosomal abnormality. The translocations recorded include adjacent section, alternate segregation, centric fusion, distal segment, eye color, heterozygote, interstitial segment, reciprocal, Robertsonian.

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Robertsonian translocation

that in which the breaks occur at the centromeres and entire chromosome arms are exchanged, usually involving two acrocentric chromosomes.