Deutan colour blindness

The defect of colour vision was tested by the Nagel anomaloscope in several affected members of the family, and yielded values characteristic of deutan colour blindness. It was found possible to classify members of this family as having colour blindness or normal vision with the use of Ishihara plates and these were used in the field work. HGPRTase activity was measured in erythrocyte lysates by the standard technique of incubation of labelled purine base with lysate and PRPP and measurement of the rate of conversion of purine base to nucleotide (U). Occasionally, when subjects lived in distant regions of Australia or in other countries, finger prick blood spotted on to filter paper was sent throu the post (5). The most informative portion of the family consisted of one large sibship of nine males and two females with... 

Relative Likelihoods of Various Recombination Fractions between the Loci for HGPRTase and Deutan Colour Blindness... 

HGPRT AND DEUTAN COLOUR BLINDNESS RELATIVE POSITIONS... 

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