How are men more likely to be color blind than women?
967941
What colorblindness is:\nColor blindness (color vision deficiency) is a condition in which certain colors cannot be distinguished, and is most commonly due to an inherited condition. Red/Green color blindness is by far the most common form, about 99%, and causes problems in distinguishing reds and greens. Another color deficiency Blue/Yellow also exists, but is rare and there is no commonly available test for it. \nDepending on just which figures you believe, color blindness seems to occur in about 8% - 12% of males of European origin and about one-half of 1% of females. I did not find any figures for frequency in other races. Total color blindness (seeing in only shades of gray) is extremely rare. \nThere is no treatment for color blindness, nor is it usually the cause of any significant disability. However, it can be very frustrating for individuals affected by it. Those who are not color blind seem to have the misconception that color blindness means that a color blind person sees only in black and white or shades of gray. While this sort of condition is possible, it is extremely rare. Being color blind does keep one from performing certain jobs and makes others difficult. \n\nLife's minor frustrations (and occasional dangers) for the color blind:\nWeather forecasts - especially the Weather Channel - where certain colors just can not be distinguished on their weather maps. Also, maps in general because of the color coding on the legends. \nBi-color and tri-color LEDs (Light Emitting Diodes): Is that glowing indicator light red, yellow, or green? \nTraffic lights, and worst of all, Caution lights: Color blind people always know the position of the colors on the traffic light - in most states, Red on top, Yellow in the center, Green (or is that blue?) on the bottom. It isn't good when we go to a city or state where they put traffic lights horizontal - it takes a couple of days to get used to that one! But caution lights present an entirely different problem. In this situation there is only one light; no top or bottom, no right or left, just one light that is either red or yellow - but which is it? \nGetting in the sun with your girlfriend: So, you're out in the boat or on the beach with your girlfriend and soaking up the rays. But I can't tell until far too late if I'm getting red - or if she is. If I can tell it's red, by that time it's fire engine red and a painful sunburn is already present. \nColor observation by others: "Look at those lovely pink flowers on that shrub". My reply, looking at a greenish shrub "What flowers?" \nPurchasing clothing: I've got some really neat colors of clothes. Not everyone appreciates them like I do though; they seem to think the colors are strange. I just don't know why! \nKids and crayons: Color vision deficiencies bother affected children from the earliest years. At school, coloring can become a difficulty when one has to take the blue crayon -and not the pink one- to color the ocean. \nTest strips for hard water, pH, swimming pools, etc.: A color blind person is generally unable to : \ninterpret some chemical reactions \nsee that litmus paper turns red by acid \nidentify a material by the color of its flame such as lead blue or potassium purple \ninterpret the chemical testing kits for swimming pool water, test strips for hard water, soil or water pH tests - all of which rely on subtle color differences and a band of similar colors to compare against. \nCooking and foods: \nWhen cooking, red deficient individuals cannot tell whether their piece of meat is raw or well done. Many can not tell the difference between green and ripe tomatoes or between ketchup and chocolate syrup. \nSome food can even look definitely disgusting to color deficient individuals. For example, people with a green deficiency cannot possibly eat spinach which to them just look like cow pat. They can however distinguish some citrus fruits. Oranges seem to be of
256405
my own understanding to this is - and i might be wrong - it has an affect. i based this on Albinos, they lack pegimintation (melinen) in their skin and eyes (which gives them pink or red eye colour) and they have major eye-sight problems and sun can affect them alot. so i would assume the less pigement u have (i.e. blue) the greater affect u will have by sun (even if it is very little) but surely there is a difference.
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Color blindness is dependent on the visual spectra.  OK..thats lots of jargon so here is simple way to look at it.  You visual light is while however if you put a prism you will see rainbow colors (remeber prism experiemnt?).  Well, your eye is designed to synthesize white visual light into optical shades (rainbow) and hence one can see colors.\n\nNow two ends of this color spectra are Blue and Red and everything in between.Depending upon, where there is a deficiency in your prism (eye), it can vary in color interpreation.  Hence, it varies with ansers below. There have been examples in the history that baristors (lawyers in English court) went to court with Red coat (instead black) and judges thought that person was a prankster...this is before color blindness was identified..
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I haven't seen that personally.  Actually, according to scientific studies, people with lighter eyes (especially bright blue) tend to have more eye problems than any other eyecolor.  There could be some vitamin or mineral deficiency that Asians have that I am unaware of though.
938959
This is due to a defective X chromosome. As a man has only one he is more likely to be colour blind. Females have two X chromosomes so are much less likely to have the condition. Hemophilia where the blood does not clot works the same way.
1151256
Color blindness, or color vision deficiency, in humans is the inability to perceive differences between some or all colors that other people can distinguish. It is most often of genetic nature, but may also occur because of eye, nerve, or brain damage, or due to exposure to certain chemicals. The English chemist John Dalton in 1794 published the first scientific paper on the subject, "Extraordinary facts relating to the vision of colours", after the realization of his own color blindness; because of Dalton's work, the condition is sometimes called Daltonism, although this term is now used for a type of color blindness called deuteranopia (see below).\n\nColor blindness is usually classed as a disability; however, in select situations color blind people have advantages over people with normal color vision. Color blind hunters are better at picking out prey against a confusing background, and the military have found that color blind soldiers can sometimes see through camouflage that fools everyone else. Monochromats may have a minor advantage in dark vision, but only in the first five minutes of dark adaptation.
616054
I guess the color is not as important as the rest of the woman characteristics. May be if the color affects the man choice on  a woman then he might leave her if she dyes her hair.
595955
it depends on the guys skin tone, if hes white light colors because they axcent his eyes and hair, if hes black, mediium colors like blue, or green, if hes mixed anything thats not too blod
316761
There are different kinds of color blindness.  The most common is red/green.  This occurs when the chromosome that codes for how we see color is missing either the red or green gene or else there is a chimeric gene (it has both red and green on the same gene) that only allows one of the colors to be expressed. If the chromosome doesn't have both the red and green gene being properly expressed than the person will be red/green color blind.  This means that he/she will not be able to perceive red (if that is the gene missing) or green (if that is the missing gene) There are no drugs that can help this, because you are missing the gene -- there is no way to "fix" that.  Hope that helps.  :)
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Two factors I can think of.\n1) Male mystique.  Male have an attitude and mentality that they are superior than female.  Male have to show they are not weak and feminine.\n2) Female live longer because they are more resilient.  Their genetic makeup are better than male right from the start in their mother's womb (female have two X's chromosomes XX vs male's XY).
357436
my uncle is completely colorblind. all he can see is black brown and white. he cant see very well because the colors blend together.
831547
The color which you are seeing may look differently to other person.\nIt depends on how eyes recieve the color and how the brain interprets the signals.\n\nThis is very difficult to answer. if one can be made to work with more than one brains, then probably, it can be answered correctly!!!
217344
I do not think the question of better applies.  Consider the matter this way: The human mind in general has been deemed as equivalent organ between the sexes; with respect to its general psychological functions.  However, when incorporating real-world data one can see that maps over-the-span-of-human-time have basically been of the males' world.  Like hunters during the hunting and gathering times, travelers to places afar, explorers charting new lands, and the like, therefore, safe to say males as a group still do yet read more maps than do females.  I've no doubt there exists a female such as she can equally well read and interpret a specific map as can the best male.
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It's because since girls have 2 X chromosomes and males only have one X then all the genes are going to try to fit in that one X chromosome the male has and that's where colorblindness comes in, the gene for colorblindness is more likely to appear in males' genes because they only have 1 X chromosomes.\nwell that's all I know hope I helped!
646525
it is either X^cX^c or X^cY\n\nIf the subject is female, she must be homozygous recessive for colorblindness (which is a recessive X-linked trait). \n\nIf the subject is male, all he needs is the colorblindness trait on his only X chromosome. Males only inherit one X and one Y. colorblindness is never carried on the Y chromosome, so as long as he inherits it on the X, he will have it.\n\nThis is why men tend to be more subject to colorblindness than women. Women need to inherit two recessive genes for them to actually display the characteristic in their phenotype; men only need to inherit one. Even if women inherit one gene for colorblindness, they will not exhibit it, since it is recessive, so the dominant gene for color vision is displayed and she is a carrier for the trait. While she is not colorblind herself, she is still able to  pass the gene down to her offspring: even if she mates with a male with normal vision, any male offspring will have a 50% chance of being colorblind.
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Less than white males
276633
No. \nHumans see the color purple as stimulation of red AND blue receptor (Purple is not a primary color). \nAnyway, whatever colorblindness you have, it never would affect only one color, because the ratio of the excitation of two or more different types of photoreceptors contributes to most colors (You have only three different kinds of color receptors, but you can see millions of colors). \nSo deficiency in one photoreceptor type affects not only its primary color but many others too. \n\nA nice webpage for a simulation of how color blind people see colors are \nhttp://www.vischeck.com/\nhttp://jfly.iam.u-tokyo.ac.jp/html/color_blind/text.html#see