Many people consider diploidy
to be the pinnacle of evolution," Otto says.
Semen analysis by electron and fluorescence microscopy in a case of partial hydatidiform mole reveals a high incidence of abnormal morphology, diploidy
, and tetraploidy.
We did nor find associations with aneuploidy of chromosome 1; however, the sperm ACM-FISH assay does not effectively distinguish between disomy 1 and diploidy
(Sloter et al.
In both groups, the mean frequencies of chromosome 18 disomy were within the normal range: the means of frequency of diploidy
and sex chromosome disomy were higher than reference values, but only diploidy
reached statistical significance (P = 0.
Finally, the allelic ratios permitted clear differentiation between diploidy
tropicalis has research advantages: diploidy
and brief maturation time make this species ideal for genetic analyses over multiple generations (2).
In Noctiluca, the first divisions of the gamete mother-cell nucleus are believed to be meiotic (Zingmark, 1970), which would imply diploidy
in these dinofiagellates.
Note that the two in these equations arises from diploidy
In principle, analogous equations could be derived for more complicated genetic assumptions such as diploidy
and linkage, but I have not explored these possibilities.
Colon cancers with MSI are more commonly seen in the proximal colon, have mucinous and poorly differentiated histologic appearance, with a lymphocytic infiltration, exhibit diploidy
, and most importantly, have a more favorable prognosis.
Disomy X, Y, and 21, XY sperm, sex-null sperm, chromosome 21-null sperm, and various forms of sperm diploidy
were measured separately as previously described (Baumgartner et al.
As early as 1930, Aase stated: "Haploidy may be changed to diploidy
in the meiotic division through non-reduction of univalents.