Mitotic spatial model: Arrangement of homologous chromosomes |
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| Authors: | U. C. Lavania A. K. Sharma |
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| Affiliation: | (1) Central Institute of Medicinal & Aromatic Plants, P.O. Ram Sagar Misra Nagar, 226016 Lucknow, India;(2) Centre for Cell & Chromosome Research. Department of Botany, University of Calcutta, 700019 Calcutta, India |
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| Abstract: | Two different mitotic spatial models (Lavania & Sharma, Biosystems 14: 171–178, 1981: Ashley & Pocock, Genetica 55: 161–169, 1981) for the arrangement of the chromosomes in the nucleus are analysed for the sake of comparison and assessment. In general, the two models propose nearly the same orientation regarding chromosomal organization. However, they differ with respect to the position of homologous chromosomes, suggesting respectively their adjacent or opposite location in somatic arrangement. The two proposals have been analysed in the light of experimental evidence as well as organizational interpretations. The arguments presented here support the adjacent location of somatic homologous chromosomes. |
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