
1) Birth defect 2) Congenital abnormality 3) Congenital anomaly 4) Congenital defect 5) Congenital disorder
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https://www.crosswordclues.com/clue/polysomy

Polysomy is found in many species, including fungi, plants, insects, and mammals. Most eukaryotic species are diploid, meaning they have two sets of chromosomes, whereas prokaryotes are haploid, containing a single chromosome in each cell. Polysomy is a condition in which an organism has at least one more chromosome than normal, i.e., there may be...
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http://en.wikipedia.org/wiki/Polysomy

Situation in which all chromosomes are present and some are present in greater than the diploid number, for example: trisomy 21. ... (18 Nov 1997) ...
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http://www.encyclo.co.uk/local/20973

(pol″e-so´me) an excess of a particular chromosome.
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http://www.encyclo.co.uk/local/21001

Situation in which all chromosomes are present, and some are present in greater than the diploid number, for example, trisomy 21.
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http://www.encyclo.co.uk/visitor-contributions.php

Type: Term Pronunciation: pol′ē-sō′mē Definitions: 1. State of a cell nucleus in which a specific chromosome is represented more than twice. Cells containing three, four, or five homologous chromosomes are referred to, respectively, as trisomic, tetrasomic, or pentasomic.
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http://www.medilexicon.com/medicaldictionary.php?t=71106

[
n] - congenital defect of having one or more extra chromosomes in somatic cells
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http://www.webdictionary.co.uk/definition.php?query=polysomy
noun congenital defect of having one or more extra chromosomes in somatic cells
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https://www.encyclo.co.uk/local/20974
No exact match found.