title: The use of high resolution microscope photometry in the discrimination of chromosome bands.
abstract: High resolution microscope photometry was used to discriminate between regions of differing density along the length of a banded metaphase chromosome. It has been demonstrated that photometry can be performed on such material to give a higher level of effective resolution than has hitherto been obtained. Using conventional visible light microscope photometry it is possible to obtain useful comparative densitometric information from measurements performed at a point separation equivalent to 0.05 micrometer in the object plane. The practical details of the equipment employed and the theoretical basis of the study are discussed.
mesh_terms: D002871:Chromosome Banding / Q000379:methods*; D006801:Humans; D008677:Metaphase; D008853:Microscopy / Q000295:instrumentation*; D010783:Photometry / Q000379:methods