| Autor: |
Meyer, G. F., Lipps, H. J. |
| Zdroj: |
Chromosoma; February 1984, Vol. 89 Issue: 2 p107-110, 4p |
| Abstrakt: |
The ultrastructure of polytene chromosomes of Drosophila and Stylonychia were compared in whole-mount spread preparations. In Drosophila the chromomeres appear as dense, unresolvable structures interconnected by 10-nm interband fibers. In contrast, chromomeres of Stylonychia polytene chromosomes are formed by aggregates of 30-nm loops laterally attached to 10-nm interband fibers. It is suggested that the polytene chromosomes in these two species are analogous rather than homologous structures. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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