Is it possible for a man of normal colour vision to have a colour blind daughter?
http://www.google.com/#q=color+blind+girl
Yes, it is possible for a man with normal color vision to have a colorblind daughter. This can occur if the man carries a recessive gene for color blindness and passes it on to his daughter. In order to understand how this is possible, it is important to have knowledge of the genetics of color blindness.
Color blindness is usually an inherited condition that is caused by abnormalities in the genes responsible for color vision. The genes for color vision are located on the X chromosome. Since males have one X chromosome and females have two X chromosomes, they have different genetic inheritance patterns for color blindness.
Typically, color blindness is more prevalent in males because if they inherit a single copy of the gene for color blindness (located on their X chromosome), they will develop the condition. On the other hand, females need to inherit two copies of the gene, one from each parent, in order to be colorblind. It is less likely for females to be colorblind as they would need to inherit the gene from both their mother and father.
In the scenario you mentioned, if a man with normal color vision carries the gene for color blindness on one of his X chromosomes, he can pass it on to his daughter. Since females have two X chromosomes, they have a higher chance of receiving the gene for color blindness from their father and potentially being colorblind themselves.
To determine the likelihood of a specific case, you would need more information, such as whether the man's parents or other relatives had a history of color blindness. Additionally, genetic testing can provide more accurate predictions about the chances of a child being colorblind.