<prompt> Color blindness transmitted throughX-linked recessiveMale to male inheritanceAutosomal recessiveAutosomal dominant  <response>: A X-linked recessive COLOR BLINDNESS Gross cases occur in 3--4 of males, but are rare in females 0.4; milder cases are more common in males. Colour blindness is an inherited condition, being transmitted as X-linked recessive through the female who is usually unaffected, and is probably due to the absence of one of the photo-pigments normally found in the foveal cones. In most cases reds and greens are confused, so that the defect is a source of danger in certain occupations, such as in engine- drivers and sailors. The red-green cases fail into two chief groups, protanopes and deuteranopes. 