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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1975-9-5
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pubmed:abstractText |
Ikushima and Wolff have recently interpreted both their observation of chromatid aberrations in second and third mitoses following X-irradiation and the production of chromatid type chromosomal aberrations by UV light administered during the G1 phase of the cell cycle in terms of a polyneme model of eukaryote chromosome structure. They were led to do so, however, largely because of their X-ray data, which the interpreted as evidence for the induction of sub-chromosomal lesions (by G1 irradiation; sub-chromatid for G2 irradiation) which appear as chromatid type aberrations only in later divisions. We here report data from similar X-ray experiments in which synchronized Chinese hamster tissue culture cells were irradiated in either G1 or G2 and then scored for chromatid aberrations in their first, second and third post-irradiation mitoses. Our results do not show the effect reported by Ikushima and Wolff. We conclude that all of the data available of aberration production is compatible with a simple mononeme model of eukaryote chromosome structure.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0027-5107
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
28
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
191-7
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1134507-Animals,
pubmed-meshheading:1134507-Autoradiography,
pubmed-meshheading:1134507-Cell Line,
pubmed-meshheading:1134507-Chromatids,
pubmed-meshheading:1134507-Chromosome Aberrations,
pubmed-meshheading:1134507-Cricetinae,
pubmed-meshheading:1134507-DNA,
pubmed-meshheading:1134507-Lung,
pubmed-meshheading:1134507-Mitosis,
pubmed-meshheading:1134507-Radiation Genetics,
pubmed-meshheading:1134507-Thymidine,
pubmed-meshheading:1134507-Tritium,
pubmed-meshheading:1134507-Ultraviolet Rays,
pubmed-meshheading:1134507-X-Rays
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pubmed:year |
1975
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pubmed:articleTitle |
X-ray and UV-induced chromatid aberrations: evidence for polynemic chromosomes?
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, U.S. Gov't, Non-P.H.S.
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