Could the reason be for less girls being colourblind be,,?

Question

Most of the females with colourblindness died out, after eating the wrong berries whilst gathering the fruit?

It was a question nevertheless ;)

Answer 1

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.

Answer 2

lol, I like your idea but in fact it's because the defective gene which causes all forms of colourblindness if found on the X sex chromosome. Females usually have XX chromosomes (although they can have XXX with causes a number of physical features) whereas males usually have XY. Logically the Y chromosome has less genetic information that the X chromosome meaning that any recessive genetic disorder on the X chromosome which is not matched or corrected by the Y chromosome becomes dominant. So basically if the Y chromosome doesn't have a correct colour vision gene and the X chromosome has a defective colour vision gene, then the man will become colourblind. Females are less like to be colour blind as they have two X chromosomes so it is likely that one will carry the correct gene and thereby correct the defective recessive gene.
Hope that answers you :-)

Answer 3

No, the women just argued so much about the colours that the blokes just agreed and went down the pub for a quiet life.

The women then had a secret meeting to agree exactly how colour can be manipulated to ensure the man gets it wrong. This secret continues to be passed on to teenage girls at schools under the guise of "the period talk".

Now we have trouble remembering what it is we're supposed to call the different colours to fit in with the correct female perception. Of course, this is to maintain the correct balance in the universe of the woman always being right (except about offside decisions, which is the exception that proves the rule).

Answer 4

As bwadsp said, it's carried on the X chromosome. Females have 2 of these, males only one. Therefore, females have 2 copies of the gene in question, both of which would have to be faulty before she was colour blind. Obviously this is much rarer than only having one faulty copy as with males. Females with one good copy and one bad copy are said to be 'carriers'. A female with colour blindness would have to have a colour blind father and a carrier (or colour blind) mother.

Queen Victoria was famously a carrier of another sex-linked problem, haemophilia. As half her children got the bad gene, half the boys would be haemophiliacs and half the girls would be carriers.

Answer 5

Yahoo Answers is just sooo dang entertaining...

whilst...who talks like that?

Answer 6

You mustn't answer your own question Blue eyes......
Tut Tut Tut......

Answer 7

It could be the reason. However, it isn't.

Answer 8

bwadsp has got it right

GIVE THAT MAN A COCONUT