In all degenerated embryos, nuclear structure was altered and the microarchitecture of the nucleolus had disappeared when compared with the nuclei of control embryos.
The rest remain 'developmentally dormant' in ovarian tissue and finally became degenerated via apoptosis.
Oocytes with compact cumulus layers and semicircular cytoplasm, classified as degenerated, were discarded, as were oocytes with expanded cumulus layers and denuded oocytes.
Reconstructed oocytes that degenerated within the first hour of culture were also discarded.
As shown in the present study, a pair of diploid blastomeres from the rat 8-cell-stage embryo degenerated immediately after implantation.
Indeed, "man with two heads" and "scatter for we head" mean ruthlessness and the extent to which things have degenerated.
Nevertheless, fecundation of females with degenerated ovaries had occurred since spermatozoids were found in nearly all seminal receptacles.
A trend-setting situation had degenerated into a crisis during the war.
