ISSN:
1432-0886
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Abstract A cytogenetic procedure is described whereby a combination of polytene chromosome analysis and complementation mapping has permitted the unequivocal localization of “ordinary” sex-linked genes (those not covered by the Y-chromosome) in Section 20, the most proximal region of Bridges' (1938) map of the polytene X-chromosome. Thus far, eleven functional units in Section 20 distal to the bobbed locus, but none proximal, have been resolved. We suggest that the polytenized portion of Section 20, which heretofore has traditionally been considered as heterochromatic, corresponds, in fact, with the euchromatic portion of the mitotic X-chromosome.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00329116
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