Colorblindness_MaryWilliams

Colorblindness By, Mary Williams Colorblindness is a common and a mostly inherited disease. It is a recessive gene and it is inherited on the X chromosome of the person. Colorblindness occurs when the color-sensing nerves in an eye fail or malfunction. There is a long list of symptoms of colorblindness. One of them is trouble differentiation different shades of the same color like light blue versus dark blue. Another one is not being able to tell the difference between different colors at all because in extreme cases they might only be able to see white, black, and gray. They might also experience red, watery eyes. There is not a known treatment to cure colorblindness but some contact lenses can help people with the disorder. Some facts that I think people should know are that 1 in 10 men are colorblind and not many women are colorblind. In most cases, the disease is discovered when a child with it is learning about colors in school. Not all cases of colorblindness are genetic either. It might be from aging, eye problems, eye injuries, or side effects from medicine. Some jobs require seeing colors so colorblind people might be limited on jobs like being an electrician and being able to see colored wires. Another is a fashion designer and not being able to see the colored fabrics. Colorblindness is an unfortunate disease that people live with everyday. It limits them from seeing the colors of the world around them. [] []

__This is what a normal person sees. _This is what a colorblind person sees. Mary Williams Mrs. Conlen Grade 7 Science, Period 2 2/27/12 Colorblind Pedigree Colorblindness is a recessive genetic disorder that is inherited on the X chromosome of a person. Colorblindness makes it harder to see colors. Kathy, who was not affected by colorblindness, married Ed. Ed is colorblind. They had four children Nial, Sarah, Maddie, and Brooke. Nial is affected by colorblindness but all his sisters are carriers. Nial married Sharon who has normal vision, and they had two children Sam and Doug. Sam is the only brother that is affected by colorblindness. Sarah married Robert, who is unaffected, and they had identical twin daughters, Allysa and Amy. The twins are carriers. Maddie and Phillip got married and had no children. Brooke married a colorblind man named Rich and they had four children Harry, Celia, Spencer, and Gavin. Spencer got the gene from his dad and is colorblind. Celia is a carrier and Harry is normal. Gavin and Cindy got married and both have unaffected vision. Harry married Carly who was a carrier of colorblindness. They had a daughter named Paige who is also a carrier.