42 research outputs found
Description of the nucleolar activity and karyotype in germinative cell lines of Rhodnius domesticus
Full text linkCytogenetische Studien an HeLa-Zellen. I. Chromosomen, DNS-Gehalt und Struktur der Interphasenkerne
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Role of Ooplasm in Nuclear and Nucleolar Remodeling of Intergeneric Somatic Cell Nuclear Transfer Embryos during the First Cell Cycle
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RB, A DETERMINANT DEFINED BY LYMPHOCYTO-TOXICITY BEING ASSOCIATED WITH ABO BLOOD GROUPS AND ABH SECRETOR STATUS FURTHER EVIDENCE THAT RB IS NOT PRODUCED BY LYMPHOCYTES
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Spontaneous Endoreduplication, Tetraploidy and Chromosome Breakage in Lymphocyte Cultures from Healthy Subjects
No full textSUMMARY42,703 metaphases of peripheral lymphocytes from 20 healthy subjects (10 women and 10 men) were examined in order to establish the frequency of endoreduplicated cells and of tetraploid cells without diplochromosomes. Frequencies were found to be 0.016% and 0.112%, respectively. The two sexes did not differ as to the frequency of tetraploid cells, with and without diplochromosomes (about 0.13% in either sex). In a total of 2,135 well spread metaphases examined, 26 cells (i.e. 1.2%) with chromosomal breaks were found. Again, no significant differences between the two sexes were found as to such chromosome abnormalities
