Can a female be colourblind?

Answer 1

If she has eyes in her head, there is always a chance

Answer 2

no because she has 2 x chromosome and the missing gene on one will be balanced by the other while males have xy chromosome, so the x gene product is not balanced by the other x chromosome
females can only be carriers and rarely colourblind if really unlucky

Answer 3

Yes, a female can be colorblind. But it isn't very common. About 5 to 8 % of the men is color blind. For women...0.5%
"http://www.agape1.com/color%20vision.htm" (site, I got this info, this is one of the passages):
Inheritance & incidence
Most kinds of congenital colorblindness are caused by defects in the X chromosome (called sex linked). Since females have two X chromosomes and males have an X chromosome and a Y chromosome, colorblindness is much more common in males: females must have defects in both chromosomes before they exhibit colorblindness or deficiency.

A female with the colorblindness defect in one X chromosome is a carrier of colorblindness. Male children of a female carrier are as likely to be colorblind as male children of a male with colorblindness, and male children of a male with colorblindness and a female carrier are extremely likely to be colorblind.

Approximately 5% to 8% of the men and 0.5% of the women of the world are born colorblind. That's as high as one out of twelve men and one out of two hundred women. People who are protans (red weak) and deutans (green weak) comprise 99% of this group.

Every human has 2 sex chromosomes, women have two X's, men have an X and a Y. The genes for L and M photopigments are located next to each other (tandemly) on the X chromosome. This means that men have one set of L and M genes and that women have two sets. This is why men are more likely to be colorblind; if there is a defect in a man's genes, they are colorblind, a woman's second set of genes often keeps her from being colorblind. A woman can get a "colorblind" X from her father and pass this X on to her children. This woman has a 50% chance of having a colorblind son, and if her husband has normal color vision, her daughters should have normal color vision but have a 50% chance of being carriers for colorblindness. The woman herself is a carrier for colorblindness. If a woman's father is colorblind she is said to be an obligate carrier because she is known to have gotten the colorblind X from her father (if she had gotten the Y, she would be male!). Other genetic options to the above diagram are shown below:

Answer 4

Yes, but it is much less common. My boyfriend is red/green colourblind and it can cause much hilarity on occasion, bless him!

Answer 5

Yes

Answer 6

the chromosomes XX are only carriers of colourblindness they do not show up in females.

Answer 7

Yes, but I believe that it's only about 1.4%?
Please correct me if I'm wrong.
There are different colours to which one can be blind:
* Acquired
* Congenital

* Dichromacy

* Protanopia
* Deuteranopia
* Tritanopia

* Anomalous trichromacy

* Protanomaly
* Deuteranomaly
* Tritanomaly

* Monochromacy

* Rod monochromacy
* Achromatopsia

Answer 8

colorblindness is carried on the X chromosome. Normal vision is dominant over colorblindness. A normal visioned woman may be carrying the gene for colorblindness on one of her X chromosomes. She can pass this gene onto her son. Her son will then be colorblind. It is rare in woman, because both of her X chromosomes must have a colorblind gene, for her to be colorblind.

Answer 9

Anyone can be colourblind.

Answer 10

i may be telling lies here - but from what i can remember from school biology the gene that controls 'normal' sight is found in the section of the x chromosome that the y one is missing. therefore only males are colour blind due to having a y chromosome. i hope that makes sense to people other than me!!

Answer 11

yes.if both parents are colourblind(usually)