triploidy


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Related to triploidy: triploidy syndrome

triploidy

[′tri‚plȯid·ē]
(cell and molecular biology)
The occurrence of related forms possessing chromosome numbers three times the haploid number.
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4] In more recent larger studies this phenotypic distinction between maternal and paternal triploidy has been challenged.
Cytogenetic analysis of giant oocytes and zygotes to assess their relevance for the development of digynic triploidy.
Teskeredzic E, Donaldson EM (1993) Comparison of hydrostatic pressure and thermal shocks to induce triploidy in Coho salmon (Onchorhynchus kisutch) Aquaculture 117: 47-55.
The Natera Panorama test reports on the fetal fraction of cfDNA, and does a risk calculation for the common trisomies--21, 18 and 13, monosomy X and triploidy.
Thus, triploidy in alates and workers is best explained as the result of queens that have mated with diploid males with unreduced sperm (diploid sperm).
In fish, triploidy is easily induced by pressure and/or temperature shock on the fertilized eggs.
However, the normal female samples could not be distinguished from triploidy (69,XXX) because their relative copy numbers do not change.
6) CNVs and delineation of breakpoints are more accurately determined with SNP arrays, and they are adept at identifying triploidy and diploidy-triploidy mosaicism, which are relatively frequently found in prenatal samples.
Triploidy is characterized by the presence of an additional set of chromosome in organisms.
In this study, it was shown that 'VNTR gen-otyping can identify the parental source of polymorphic alleles and thus discern androgenetic diploidy (homozygous and heterozygous), diandric triploidy, and biparental dip-loidy, which allows for specific diagnosis of CHMs, PHMs, and NMs, respectively.
When observing polyploidy, the most fequent was the presence of endoreduplication, while triploidy and tetraploidy were somewhat rarer.