Nonrandom segregation of sister chromatids in Vicia faba and Triticum boeoticum.
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چکیده
منابع مشابه
Compaction and segregation of sister chromatids via active loop extrusion
The mechanism by which chromatids and chromosomes are segregated during mitosis and meiosis is a major puzzle of biology and biophysics. Using polymer simulations of chromosome dynamics, we show that a single mechanism of loop extrusion by condensins can robustly compact, segregate and disentangle chromosomes, arriving at individualized chromatids with morphology observed in vivo. Our model res...
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In this paper there are given the results of a study of the relation of respiration to temperature, in seedlings of Vicia faba, and of the onset of geotropic response. It is shown that with due care and very accurate control of temperature constancy, one can get constant excretion of CO(2) even over fairly long periods. The treatment of the experimental data shows that the Q(10) ratio is of cou...
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Before a cell is able to divide it needs to solve a topological puzzle that seems far too complex to be surmounted: the separation of its two sets of DNA molecules, which—after DNA duplication—form seemingly inseparable tangles. In humans, 46 such tangles need to be resolved, with a total length of 4 meters. Polymer physics does not come to the cell’s rescue, as two overlapping polymers only fe...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1967
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.58.1.352