منابع مشابه
Crossing over without Chiasmatype?
In a recent number of this journal Professor RICHARD GOLDSCHMIDT has a paper (1917) , “Crossing over ohm Chktsmtypie?“, in which he develops a hypothesis to account for crossing over without recourse to the chiasmatype theory of JANSSENS (which, according to GOLDSCHMIDT, “ziemlich in der Luft schwebt”), or to any similar process. The argument is based on the “von jedermann anerkannten Vorausset...
متن کاملQnAs with Angel Rubio.
Just as physics requires a different set of tools to explore phenomena at the quantum scale, chemistry requires a quantum paradigm. At the macroscale, the interaction of light with chemical entities can be observed in processes such as photosynthesis. But the actual interaction between photons and other matter occurs in the realm of quantum chemistry. National Academy of Sciences member and phy...
متن کاملCrossing over to the other side.
What happened when a doctor on duty in the emergency department suddenly made the transition to "patient in Resus 2"?
متن کاملHeterochromatin, the synaptonemal complex and crossing over.
A combined light- and electron-microscopic examination of chromosomes from two angiospermous plants, Plantago ovata and Lycopersicon esculentum, and a mammal, Mus musculus, was performed. From this investigation three observations have been made that may be relevant to the observed lack of crossing over in heterochromatin. (1) Differential staining indicates that heterochromatin represents a sm...
متن کاملStudies on the Mechanism of Crossing over.
N E of the major objections to the torsion theory of crossing over as pro-0 posed by DARLINGTON (1935) is that it is difficult to comprehend why a break in one chromatid should cause a break to occur in exactly the same position in a chromatid from the homologous chromosome. This objection holds for any mechanism which postulates that crossing over occurs after the duplication of the chromosome...
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ژورنال
عنوان ژورنال: Sign Systems Studies
سال: 2005
ISSN: 1736-7409,1406-4243
DOI: 10.12697/sss.2005.33.2.02