Which of the following is an example of an X-linked recessive inheritance condition?

Red-green color blindness is indeed an example of an X-linked recessive inheritance condition. In X-linked recessive inheritance, the gene associated with the condition is located on the X chromosome, and typically, males who have one copy of the mutated gene will express the trait, while females usually require two copies to exhibit the condition.

In the case of red-green color blindness, the gene affecting color vision is located on the X chromosome. Most affected individuals are males, as they have only one X chromosome. Females, having two X chromosomes, would need to inherit the mutated version from both parents to exhibit the color blindness phenotype, which is less common.

Other conditions listed, while notable, follow different inheritance patterns. Fragile-X syndrome is also X-linked recessive but has unique features that differentiate it from color blindness specifically. Duchenne muscular dystrophy is another example of an X-linked recessive condition, akin to red-green color blindness; however, it is important to identify the specific trait being asked about. Marfan syndrome is an autosomal dominant condition and does not involve the X chromosome at all. Understanding these distinctions within inheritance patterns is crucial for accurately identifying genetic conditions.