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Updated: May 20, 2026

Dissection and Flat-mounting of the Threespine Stickleback Branchial Skeleton
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P33-fine structural and immunohistochemical observations of the collar enamel in Lepisosteus and Polypterus,

I Sasagawa1, M Ishiyama, H Yokosuka

  • 1Advanced Research Centre, School of Life Dentistry at Niigata, Nippon Dental University, Hamaura-cho 1-8, Niigata 951-8580, Japan.

Bulletin Du Groupement International Pour La Recherche Scientifique En Stomatologie & Odontologie
|July 4, 2012
PubMed
Abstract

No abstract available in PubMed .

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Lampbrush Chromosomes01:51

Lampbrush Chromosomes

In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops resemble the...