The chromosome resembles more a crystal than other cell organelles

Authors

  • Antonio Lima-De-Faria Professor Emeritus of Molecular Cytogenetics, Lund University, Lund, Sweden

DOI:

https://doi.org/10.36253/caryologia-2332

Keywords:

chromosome, crystal structure, DNA

Abstract

Several organelles in the cell, such as mitochondria and chloroplasts, are limited by one or several membranes, whereas others, like ribosomes and nucleoli have no membranes. Their shape is decided by their inner atomic coherence. The mineral crystal has no delimiting membranes built by separate atoms. Atomic self-assembly determines its pattern. Remarkable is that the chromosome has no outer membrane limiting its pattern as seen in the light and electronic microscopes. Its pattern is also decided by the inner coherence of the atomic configuration of its DNA, RNA, and proteins. The chromosome appears to occupy an intermediate position between a mineral crystal and a cell organelle when its atomic configuration is considered.

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References

Brown, T. A. 2017. Genome IV. CRC Press inc., USA.

Lima-de-faria, A. 1973. Equations Defining the Position of Ribosomal Cistrons in the Eukaryotic Chromosome. Nature New Biology 241:136-139.

Lima-de-Faria, A. 1979. Prediction of gene location and clarification of genes according to the chromosome field. Alfred Benzon Symposium No. 13. Specific Eukaryotic Genes. Structural Organization and Function. Munksgaard, Copenhagen, 25-38.

Comings, D. E. 1972. Replication heterogeneity in uremammalian DNA. Exp. Cell Res. 71:106-112.

Gall, J. and Björk, L. B. 1958. The Spermatid Nucleus in Two Species of Grasshopper. J. Biophys. and Biochem. Cytol. 4:479-484.

Byers, B. 1967. Structure and formation of ribosome crystals in hypothermic chick embryo cells. J. Mol. Biol. 26:155-167.

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Published

2024-02-29

How to Cite

Lima-De-Faria, A. (2024). The chromosome resembles more a crystal than other cell organelles. Caryologia, 76(3), 3–7. https://doi.org/10.36253/caryologia-2332

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