What type of chromosomal disorder is categorized as red-green color blindness?

Red-green color blindness is primarily categorized as an X-linked disorder. This means the gene responsible for this condition is located on the X chromosome. Since males have one X and one Y chromosome, any mutation affecting the X chromosome will result in color blindness if that mutated X is inherited. For females, who have two X chromosomes, the presence of one normal allele can often mask the effects of a mutated allele, making them carriers without expressing the condition.

In the context of genetic inheritance, X-linked conditions often present differently in males and females due to the differing combinations of sex chromosomes. This specific inheritance pattern explains why red-green color blindness is more common in males than females, as they only have one X chromosome.

The other options represent different modes of inheritance which do not apply to red-green color blindness. Autosomal dominant disorders, for instance, require only one copy of a mutant allele for the trait to manifest, while autosomal recessive disorders require two copies. Y-linked disorders are passed exclusively through the male line and are only seen in males, which does not apply here as color blindness can occur in females under certain genetic conditions.