These results may suggest that most aneuploid Yesso scallops died before the D-larvae stage, and aneuploid individuals closest to euploidy, especially diploidy
, survived longer.
Multicolor fluorescence in situ hybridization analysis of aneuploidy and diploidy
frequencies in 225,846 sperm from 10 normal men.
For example, recent data have shown that a small percentage of triploid oysters progressively revert toward diploidy
with age (Calvo et al.
People, parrots, perch, polyps, and all the animals ia between usually inherit one copy of a set of chromosomes from each of their parents, a system called diploidy
Since (assuming a 1:1 primary sex ratio) the production of females is associated with production of an equal number of males, the fitness benefit from each brood doubles, thus canceling the diploidy
Most multicellular organisms have diploidy
, and it is thought that this maintains population diversity and improves the survival of species in a fluctuating environment.
Some authors found increasing age to be related to increased stage at presentation, while others found in elderly women more favourable prognostic factors such as high diploidy
values and oestrogen receptor positivity.
uesd FISH to detect chromosomal abnormalities of the sperm from a man whose wife had a partial mole, including chromosomes 13, 15, 16, 18, 21, 22, X, and Y, and found out that the semen sample analyzed had a high incidence of abnormal morphology and increased diploidy
was revealed in 21 cases, whereas a hyperdiploid karyotype, showing both numerical and structural changes, was revealed in 5 patients (cases 5, 8, 11, 15, and 21).
Mac rocephaly in bull spermatozoa is associated with nuclear vacuoles, diploidy
and alteration of chromatin condensation.
Because only one chromosome is examined in this assay, diploidy
cannot be distinguished from disomy of chromosome 1.
Chromosome counts were made as additional data to evaluate diploidy
or polyploidy using tissues of juveniles (~300 [micro]m in length) brooded within the parental gills, and following the protocol described by Jara-Seguel et al.