Saturday, October 25, 2014

GENETIC MUTATIONS


 
Genetic mutations that allow some to see many more colors
The human eye can see roughly one million colors and this is due to our retinas consisting of three different types of photosensitive cells known as cones. Each cone sees a different wavelength of color - red, green and blue. The color information mixes in our brain that allows us to see additional colors similar to the artist’s animation below.

While there are genetic mutations that cause color blindness, some scientists think about 1% of the population has an additional cone that causes them to see 100 times more colors than the average eye. Informally called the “yellow cone”, it picks up additional colors in the spectrum between green and red. This type of vision is called tetrachromacy - whereas normal vision is trichomacy.

More about this condition:
JamesonWinkler15Aug2014
Reference:
http://www.popsci.com/article/science/woman-sees-100-times-more-colors-average-person:

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