Lampbrush chromosomes in spermatocytes of Chironomus

  title={Lampbrush chromosomes in spermatocytes of Chironomus},
  author={H G Keyl},
In the primary spermatocytes of Chironomus pallidivittatus lampbrush chromosomes in pachytene and diplotene stages can be isolated by using a spreading technique. — In the earliest analyzable stages of the pachytene the lampbrush loops, although different in size, are identically structured, consisting of spiralized fibers covered with a thin matrix. These loops contain an average DNA length of 33 μm. They are connected by axial fibers of 6 nm in diameter at intervals of 0.15–0.07 μm without… CONTINUE READING

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