Results 11 to 20 of about 5,827 (200)

Mammalian cells lack checkpoints for tetraploidy, aberrant centrosome number, and cytokinesis failure [PDF]

open access: yesBMC Cell Biology, 2005
Background Mammalian cells have been reported to have a p53-dependent tetraploidy checkpoint that blocks cell cycle progression in G1 in response to failure of cell division.
Stearns Tim, Wong Connie
doaj   +3 more sources

Evidence for degenerate tetraploidy in bdelloid rotifers [PDF]

open access: greenProceedings of the National Academy of Sciences, 2008
Rotifers of class Bdelloidea have evolved for millions of years apparently without sexual reproduction. We have sequenced 45- to 70-kb regions surrounding the four copies of the hsp82 gene of the bdelloid rotifer Philodina roseola , each of which is on a separate chromosome.
Jessica L. Mark Welch   +3 more
openaire   +5 more sources

Tetraploidy in Citrus [PDF]

open access: greenProceedings of the National Academy of Sciences, 1925
Howard B. Frost
openaire   +4 more sources

Degenerate Tetraploidy Was Established Before Bdelloid Rotifer Families Diverged [PDF]

open access: green, 2008
Rotifers of Class Bdelloidea are abundant freshwater invertebrates known for their remarkable ability to survive desiccation and their lack of males and meiosis.
Jang-Hyun Hur   +3 more
openalex   +5 more sources

Rare case of myelodysplastic syndrome with near-tetraploidy and TP53 mutation [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2023
Introduction. Chromosomal numerical aberrations are very common in hematological malignancies, but near-tetraploidy (80–104 chromosomes) is rare in myeloid lineage malignancies, with only a few cases reported in myelodysplastic syndrome (MDS).
Čolović Nataša   +4 more
doaj   +1 more source

Challenging diagnoses of tetraploidy/diploidy and trisomy 12: utility of first-tier prenatal testing methods

open access: yesFrontiers in Genetics, 2023
Introduction: Chromosome mosaicism and low-grade mosaicism present a challenge for diagnosis in the era of SNP array and NGS. Tetraploidy is a rare numerical chromosomal abnormality characterized by the presence of four copies of each chromosome.
Irina Ioana Iordanescu   +11 more
doaj   +1 more source

Tetraploidy‐linked sensitization to CENP‐E inhibition in human cells

open access: yesMolecular Oncology, 2023
Tetraploidy is a hallmark of cancer cells, and tetraploidy‐selective cell growth suppression is a potential strategy for targeted cancer therapy. However, how tetraploid cells differ from normal diploids in their sensitivity to anti‐proliferative ...
Koya Yoshizawa   +14 more
doaj   +1 more source

Spindle Architectural Features Must Be Considered Along With Cell Size to Explain the Timing of Mitotic Checkpoint Silencing

open access: yesFrontiers in Physiology, 2021
Mitosis proceeds through a defined series of events that is largely conserved, but the amount of time needed for their completion can vary in different cells and organisms.
Mathew Bloomfield   +2 more
doaj   +1 more source

The consequences of tetraploidy and aneuploidy [PDF]

open access: yesJournal of Cell Science, 2008
Polyploidy, an increased number of chromosome sets, is a surprisingly common phenomenon in nature, particularly in plants and fungi. In humans, polyploidy often occurs in specific tissues as part of terminal differentiation. Changes in ploidy can also result from pathophysiological events that are caused by viral-induced cell fusion or erroneous cell ...
Zuzana Storchova, Christian Kuffer
openaire   +3 more sources

Discovery of tetraploidy in a mammal [PDF]

open access: yesNature, 1999
The red viscacha rat is unaffected by having double the usual number of chromosomes. Polyploidy, or having more than a pair of each type of chromosome, is considered to be unlikely in mammals because it would disrupt the mechanism of dosage compensation that normally inactivates one X chromosome in females1.
Rodney L. Honeycutt   +4 more
openaire   +3 more sources

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