Color blindness is significantly more common in males than in females because it is usually caused by a mutation on the X chromosome. Since males have only one X chromosome (XY), a single defective gene causes the condition. Females (XX) would need mutations on both X chromosomes to be affected, which is much rarer.
Which disease is more common in males than females?
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Question context
This question is part of 🦠 Microbiology within the broader 🧬 Medical Science subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.