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Experience-dependent color constancy in guppies (Poecilia reticulata)

I E Intskirveli1, M O Roinishvili, A R Kezeli

  • 1Laboratory of Physiology of Vision, I. Beritashvili Institute of Physiology, Georgian Academy of Sciences, 14, L. Gotua St., Tbilisi 380060, Georgia. irakli_i@yahoo.com

Neural Plasticity
|May 22, 2003
PubMed

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Perceptual Constancy01:12

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Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
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A complete procedure of testing the hypothesis about a population mean is explained here.
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In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...