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Description: | RATTUS NORVEGICUS TESTIS SEPT. 42 ACETIC ALCOHOL FEULGEN (printed on a paper label gummed ro the slide) Pach .T.} 16.5/71 M1 (written in black ink on a scrap of paper gummed to a corner of the slide). V V Warm (scratched on the glass slide. MANU PONTERCORVO,Guido. September 1942 Glasgow University, Glasgow, Scotland. Thiese are a sections of the testes of *Rattus norvegicus*, probably a laboratory rat, which is an inbred variety of the brown rat.
The specimens are fixed with a mixture of acetic acid and alcoholcand stained with Feulgen's stain, A specific histochemical test for chromosonal material or DNA was published by Robert Feulgen (1884-1955) german nucleic acid biochemist and cytochemist, and H. Rossenbeck, in 1924.
The process undergone was meiosis; the cell division in sexually reproducing organisms causing a reduction in the number of chromosomes, in the reproductive cells, from diploid (paired chromosomes) to haploid (single chromosomes) thus leading to the production of gametes (asexual) animals or plants.
Appears to be connected with work done on Chinese sandflies as vectors for *Leishmania* published in 1931 by professor Edward Hindle (1886-1973) Chair of Zoology at Glasgow University. However, it may also have been related to heat stress experiments by Pontecorvo. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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