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Genetics disorder

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cam kimball

on 21 April 2010

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Transcript of Genetics disorder

Color blindness

By: Cam Kimball and Abe Argaw Definition: The disability to see certian
colors Characteristics: cant distinguish between
colors symptoms: one is that you have to acquire
color vision problems Color blindness Test Genetic basis: there are some studies which conclude that color blind individuals are better at penetrating certain color camouflages. but the mapping of the human genome has shown there are many causative mutations mutations capable of causing color blindness originate from at least 19 different chromosomes and 56 different genes
nherited color blindness can be congenital (from birth), or it can commence in childhood or adulth Is the disorder inherited: Most people who are color blind inherit the trait. Men are more likely to be color blind because of the way color blindness is inherited. The gene for the trait is located on the X chromosome. Men have one X chromosome and women have two. If a man gets the gene for the trait, he will have a color vision defect. If a woman inherits a single gene for the trait, she will not, because the normal gene on her other X chromosome will dominate over the defective gene. Women must get the defective trait from both parents to be color blind. this disorder is a recessive gene

mutation: color blind ness is a mutation. the cone cells of the
retina usually have specific pigments ethier red green or blue.
color blind ness happens when one of the color pigments are missing
or defective. Medical treatments: one treatment is
tinted glasses that help the person see
the correct color while driving. having color
blindness does not mean you will live a shorter life. sources:
www.eye-vision.com
www.science.jrenk.org
www.wikipedia.org
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