hyperploidy

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hyperploidy

[hi´per-ploi″de]

the state of having more than the typical number of chromosomes in unbalanced sets, as in down syndrome.

hyperploidy

(hī'pĕr-ploy-dē),

Presence of extra chromosomes in incomplete sets.

[hyper- + ploidy]

hyperploidy

/hy·per·ploi·dy/ (hi´per-ploi″de) the state of having more than the typical number of chromosomes in unbalanced sets, as in Down syndrome.

hyperploidy

[hī′pərploi′dē]

any increase in chromosome number that involves individual chromosomes rather than entire sets, resulting in more than the normal haploid number characteristic of the species, as in Down syndrome. Compare hypoploidy.

hyperploidy

chromosomes in excess of normal number

hyperploidy

the state of having more than the typical number of chromosomes in unbalanced sets.

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References in periodicals archive ?

1996) found that hyperploidy or hypoploidy for 13 of 18 chromosome arms was associated with significant differences in RPR.

Quantitative trait locus analysis of stalk strength in four maize populations. (Crop Breeding, Genetics & Cytology)

When dosed with a combination of the above reagents, U138 display a decreased hyperploidy population of cells, while U373 display an increase.

Biology section. (Collegiate Division 2002)

In fact, cytogenetic analyses in mammals often discard hypoploid data completely, and estimate the total aneuploidy frequency by doubling the hyperploidy frequency (Mailhes, 1987; Pellestor, 1991; Zenzes and Casper, 1992).

Reproductive potential and genetics of triploid Pacific oysters, Crassostrea gigas (Thunberg)