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The genes for color vision.

J Nathans1

  • 1Department of Molecular Biology and Genetics, Howard Hughes Medical Institute, Johns Hopkins University School of Medicine.

Scientific American
|February 1, 1989
PubMed
Summary
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Color vision relies on retinal pigments, with genes now isolated. Genetic anomalies in these pigment genes are identified as causes of color blindness.

Area of Science:

  • Genetics
  • Molecular Biology
  • Neuroscience
  • Vision Science

Background:

  • Color vision is dependent on three types of light-absorbing pigments in retinal cone cells.
  • This dependence has been established over centuries of research in optics, psychophysics, and biochemistry.

Purpose of the Study:

  • To isolate the genes responsible for encoding color vision pigments.
  • To identify genetic anomalies associated with color blindness.

Main Methods:

  • Gene isolation techniques.
  • Genetic sequencing and analysis.
  • Identification of mutations within pigment-encoding genes.

Main Results:

  • Successful isolation of genes encoding retinal color vision pigments.

Related Experiment Videos

  • Identification of specific genetic anomalies linked to various forms of color blindness.

    • Conclusions:

    • The study provides a genetic basis for understanding color vision and its deficiencies.
    • This research opens avenues for diagnosing and potentially treating color blindness.