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Color blindness sex linked

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The Colour Blind Awareness organisation has been founded to raise awareness of colour blindness colour vision deficiency and aims to be the first point of reference for in the UK for people seeking information on colour blindness. Colour blindness is a common hereditary inherited condition which means it is usually passed down from your parents. Chromosomes are structures which contain genes — these contain the instructions for the development of cells, tissues and organs. If you are colour blind it means the instructions for the development of your cone cells are faulty and the cone cells might be missing, or less sensitive to light or it may be that the pathway from your cone cells to your brain has not developed correctly. The 23rd chromosome is made up of two parts — either two X chromosomes if you are female or an X and a Y chromosome if you are male. For a female to be colour blind it must be present on both of her X chromosomes.
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X-Linked Inheritance

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What is Color Blindness? – Colblindor

Can women be color blind? Yes, but the chances are slim! Thanks to chromosomal differences between men and women, color blind women are much fewer and farther between than color blind men. Men are much more likely to be colorblind than women because the genes responsible for the most common, inherited color blindness are on the X chromosome. Women can be carriers of the color blind gene and pass the mutation down the family line. His sons will neither carry the gene nor be color blind.
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X-linked Recessive: Red-Green Color Blindness, Hemophilia A

Traits that are determined by alleles carried on the X chromosome are referred to as X-linked. Females will have two X-linked alleles because females are XX , whereas males will only have one X-linked allele because males are XY. Most X-linked traits in humans are recessive. An Ishihara plate can be used to test for red-green colorblindness.
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The two genes that produce red and green light-sensitive proteins are located on the X chromosome. Mutations in these genes can cause color blindness. Color blindness is a common inherited sex-linked disorder that affects a person's ability to see or recognize certain colors.
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