Abstract
The morphology of the Y chromosomal lampbrush loops in thin-sectioned primary spermatocytes of Drosophila hydei is described. All loops display a characteristic morphology. Major parts of the loops are composed of protein. Nucleic acids are detectable only in a few components of each loop, in particular in small particles. We conclude that the complex morphology of at least some of the loops is the result of metabolic processes at the chromosomal level, different from transcription of genes.
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Grond, C.J., Rutten, R.G.J. & Hennig, W. Ultrastructure of the Y chromosomal lampbrush loops in primary spermatocytes of Drosophila hydei . Chromosoma 89, 85–95 (1984). https://doi.org/10.1007/BF00292891
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DOI: https://doi.org/10.1007/BF00292891