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ploidy

ploidy

9.9
The number of chromosome sets a cell or organism has
  • noun
  • /ˈplɔɪdi/
  • Specialized
translation icon : ploidía
  • Researchers study the ploidy of yeast cells to understand their genetic variations.
  • DNA ploidy
  • ploidy level

Examples

  • In most cases, surveys of seed plants have upheld this assumption (but see Elisens and Crawford 1988), and thus have led to the application of isozyme evidence in determining ploidy levels in plants.

    Academic text (2002)
  • Plants can have varying ploidy levels, affecting their growth and reproduction.

  • So whatever the underlying ploidy, this has little to no influence on the typical analysis, which aims at identifying binding sites of transcription factors.

    Blog text (32)
  • It seems clear, therefore, that the basic features of homospory enhance the possibility that each of the steps critical for the evolution of higher ploidy will occur.

    Academic text (2002)
  • The hitch in this relativistic genetic definition of ploidy levels is that it relates only to the current situation and ignores the historical, evolutionary component of species.

    Academic text (2002)
  • Megakaryocyte size and DNA content (ploidy), which are both measures of megakaryocyte maturation and determinants of thrombogenesis, increase after an MI.

    Academic text (1991)
  • Differences between high-risk and low-risk women were significantly different for cytology, ploidy, p53, and epidermal growth-factor receptor.

    Academic text (1999)
  • Bleeding time, a measure of platelet function in vivo, correlates with megakaryocyte size and ploidy (n8) and platelet mass (count x volume).

    Academic text (1991)
  • Moreover, a transcript involving ALK and the clathrin heavy chain genes was described in the pathogenesis of some IMTs. DNA ploidy analysis has been performed in some studies; it was initially done as a marker of neoplasia but may also be useful to determine prognosis.

    Academic text (2007)
  • The ploidy of a human cell is typically diploid, meaning it has two complete sets of chromosomes.

How Many

polyploid
  • Specialized
9.9
tetraploid
  • Specialized
9.9
triploid
  • Specialized
9.7
ploidy
  • Specialized
9.9
diploid
  • Specialized
7.6
haploid
  • Specialized
8.5

Surface Forms

ploidy singular
ploidies plural

Morphology

ploidy = diploid (opaque) = ploid + y

Opaque because 'ploid' is a specialized combining form not known as a standalone English word, so the general derivation is not predictable for a typical B1 learner.

Etymology

The word ploidy comes from the Greek root ploid meaning something like a 'fold' or 'layer', and it appears in words like haploid ('single') and diploid ('double'). So ploidy is a simple way to say how many complete 'sets' or 'folds' of chromosomes are in a cell.