sauerkraut was renamed liberty cabbage to remove the german connotation much like what george w bush and the republicans did to french fries by renaming them freedom fries # french fries # freedom fries # sauerkraut # germany # france # george w bush # patriotism
The most common type of red-green color perception defect is due to a mutation on the X-chromosome (i.e. a red-green color blind allele). X-linked red-color blindness is a recessive trait. Females heterozygous for this trait have normal vision.The color perception defect manifests itself in females only when it is inherited from both parents.oth X-chromosomes must carry the mutant allele for the females to be color blind. Red-green color blind females are homozygous for the recessive allele. Females with one mutant allele and one normal allele are heterozygous carriers.
Color blindness, also known as color vision deficiency, is the inability to distinguish colors and shades or to recognize them at all. It occurs when the color-sensing cones of the retina are absent or do not function properly. About 8 percent of males and 1 percent of females are color-blind to some degree. Most color-blind people have difficulty in distinguishing among various shades of the same color or seeing some colors as brightly as others; the inability to distinguish any colors at all and see the world in black-and-white is rare. Most color blindness is inherited and present at birth.