关于染色体复制后染色体交换形成位点的增加。
On the increase of sites for chromosome exchange formation after chromosome duplication.
作者信息
GARCIA-BENITEZ C, WOLFF S
出版信息
Science. 1962 Feb 9;135(3502):438-9. doi: 10.1126/science.135.3502.438.
PMID:13896844
Abstract
Although radiation-induced chromosome exchanges are not distributed among cells according to a Poisson distribution, chromatid interchanges are. In Vicia faba the lack of fit to a Poisson distribution has been attributed to the occurrence of only two sites per cell where the chromosomes are close enough to form exchanges if broken. When chromatid aberrations are induced, after chromosomal duplication, the number of sites more than doubles.
摘要
虽然辐射诱导的染色体交换在细胞间的分布不符合泊松分布，但染色单体互换却符合。在蚕豆中，不符合泊松分布被归因于每个细胞中只有两个位点，染色体在这些位点处靠得足够近，断裂时能够形成交换。当诱导染色单体畸变时，在染色体复制后，位点的数量增加一倍多。
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