why are females less likely than males to be colorblind (this is not a joke)?
105466
Colorblindness is a sex-linked trait.  It is carried on the X chromosome and is recessive.  Females have two X chromosomes, which means that even if they inherit a recessive allele for colorblindness it will usually be "covered up" or masked by a dominant allele on the other X chromosome.  \nMales on the other hand only have one X chromosome so if they inherit a recessive allele for colorblindness, they will be colorblind.\nHope this is helpful :-)
731741
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.
22546
Color blindness is a gentic related problem. It is because the endings of the color receptors are damaged. Nothing causes it...it is pased down from generation to generation through Genes...Even if someone retains its reccesivly...they can still be affected. (Meaning...if it is not the dommenent gene...it can still someone effect you) Every once and a while a genetic mutation occures and someone gets it (vary rare) but most of the time it is a genetic mutation
237308
Neither. For the most part, males are more analytical thinkers, females are more intuitive in their thinking. That doesn't mean one is smarter than the other, just that they reason usinging a different portion of their brain. It also doesn't mean that men or never intuitive or that women are never analytical. More men do better at things like math and science, more women do better with language. Each of the sexes has their strengths, and there are exceptions to these norms.
147816
Probably very high in men, very very low in women because it is carried on the Y chromosome.  \n\nFor a woman to be colored blinded, she has to have an extra chromosome (XXY) which isnt very common.  \n\nNow this is what I remember from 5th grade science. I am no scientist or doctor.  lol
448186
There is no difference.  This misconceptions comes from years of sexist discrimination and stereotyping.  Traditionally, it was thought that men had a higher aptitude for math and spatial problems.  This theory has since been disproved.  Society has been taught to think that there are fundamental differences; there aren't any.
429785
My only guess is that biologically they are much more visual than women are and need tangible evidence of there existance. Feats accomplished and places gone and things mastered provides that sort of evidence.\n\nOr the short answer: Testosterone.
160897
On a more scientific basis they just discovered that humans have a wide varity in the ratio of color receptors in the eye.  Some have mostly red color receptors, some have lots of green and blue.  I'm guessing that this could affect how we individually precieve color and influence our preferences.  Anyways, you might find the "dewey color system" interesting and it might offer you more insight.  http://www.deweycolorsystem.com/
78687
All the boys will have colorblindness. it depends strongly on the parental generation though.\nSince the father gives the progeny an X OR a Y chromosome (since boys are XY), to dictate the sex of the progeny, and the mother can only give an X chromosome (since girls are XX), therefore if the gene for colorblindness was on the Y chromosome, only the boys would have it because girls cannot have a Y chromosome. :)
773953
about 40% in females, 70 % in males
415423
hmm always thought there were more girls than guys in this world, never really thought about it, but according the the current theories behind genes, there should be an equal chance between recieving the chromosomes for a boy as a girl.
420093
Yes.  The woman is heterozygous for colorblindness (mutant from mom, normal from dad).  Since colorblindness is sex-linked recessive (i.e. carried on the x-chromosome, so males only have one copy and females have two), the son inherited the mutant allele from his mother, and non from his father.  The daughter inherited the normal allele for color vision from her mom and the mutant from her dad.  Since colorblindness is recessive, she has normal color vision.\n\nThe woman is also a carrier for hemophilia (mutant from dad, normal from mom).  The daughter would be normal no matter what unless her dad has hemophilia because she gets a normal allele from him.  She could be a carrier or could be homozygous dominant.  The son inherited the normal allele from his mom, and nothing from his dad.\n\nBy the way, contrary to the previous answer, both colorblindness and hemophilia are sex-linked _recessive_ traits.  And expression of a given allele does not "skip a generation," no matter what; it is always the result of the combination of alleles, not whether the gene was expressed in the previous generation.\n\n__________\nThat's interesting, because my textbook from AP bio states, "color-blindness is a mild disorder inherited as a sex-linked trait," but maybe you know something that the professors who wrote my textbook do not?  There's also the minor detail that both my AP bio teacher last year and my genetics professor this year used colorblindess as an example of a sex-linked trait.  And for what it's worth, Wikipedia states, "the genes for the red and green color receptors are located on the X chromosome."\n\nAutosomal traits are, by definition, not sex-influenced, as autosomal means carried on any chromosome other than the sex choromosomes.
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.
207502
COLORBLIND WMEN ARE RARELY FIND. BUT IF SO HAPPEN THEN THE THIRD GENRATION WILL BE AFFECTED N NOT THEIR CHILDRN! AS WMEN HAV XX CHROMOSOMES N MEN HAV XY CHROMOSOME
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.
737364
Even if both a man and women are left handed and had kids, there chances of their child of being left-handed is less then 50%.\n\nanything else like one lefty parent, and one righty parent, or both right parents are even a lesser chance.  \n\nIts most likely genetics.  You must have been skipped.
793594
It's true men are more visually stimulated and women are more emotionally stimulated.  They are not mutually exclusive, men and women just have diffferent preferences.