Why is colorblindness more frequent in boys?!
Question: Why is colorblindness more frequent in boys!?
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Answers:
Yovel S,
Colour blind is a term much used to indicate two conditions, colour deficient/confused and colour blind!. The human eye can simultaneously detect three primary colours, red, green and blue!. All other colours are obtained through the mixing of the three primary colours!. In the case of colour deficiency, (which used to be termed as colour confused), one or more primary colours are not detected in the normal way, while people who are colour blind see shades of gray only (total colour blindness)!. Under the most recent theory of colour vision, colour blindness is recognized as an extreme case of colour deficiency!. Men are approximately 16 times more likely to be colour deficient than women!. Approximately 8% of men and 0!.5% of women have some degree of inherited colour deficiency!. Red-green colour deficiency is a hereditary disease, carried by the X chromosome of females!. For this reason the daughter of a colour deficient father can pass it to her sons!. Women have two X-chromosomes and one defective X chromosome will be compensated for by the other non-defective one!.
Hope this helps,
matador 89Www@Answer-Health@Com
Colour blind is a term much used to indicate two conditions, colour deficient/confused and colour blind!. The human eye can simultaneously detect three primary colours, red, green and blue!. All other colours are obtained through the mixing of the three primary colours!. In the case of colour deficiency, (which used to be termed as colour confused), one or more primary colours are not detected in the normal way, while people who are colour blind see shades of gray only (total colour blindness)!. Under the most recent theory of colour vision, colour blindness is recognized as an extreme case of colour deficiency!. Men are approximately 16 times more likely to be colour deficient than women!. Approximately 8% of men and 0!.5% of women have some degree of inherited colour deficiency!. Red-green colour deficiency is a hereditary disease, carried by the X chromosome of females!. For this reason the daughter of a colour deficient father can pass it to her sons!. Women have two X-chromosomes and one defective X chromosome will be compensated for by the other non-defective one!.
Hope this helps,
matador 89Www@Answer-Health@Com
Colorblind trait is carried as a sex linked trait - it is on the X chromosome as a "recessive" gene!. Because boys have an X and Y chromosome, they do not have protection from that other X chromosome!. Girls (who have XX chromosomes) have protection from the other X chromosome and because the trait is recessive, they need to have both X chromosomes affected in order to be colorblind!.Www@Answer-Health@Com