Oneida+MacKay-Aldridge

Anomalous Trichromacy Wiki post #1, January 10, 2013

What is a nomalous trichromacy? Originally us as human being are trichromats because we have three different colour cones. One red, blue and green. But Cambrige and Oxford university have found some women to be tetrachromats, which means they have a four colour cone inside their eyes. It is said that women who are tetrachromats can see ten colours in the rainbow, where as the rest of the population can only see six.

The genes for our red and green cones are found on the x chromosome, which gives women a redundant set of receptor genes. This is why men are more prone to be colour blind. The original problem that leads to color-blindness occurs in the process of meiosis.