An affected father (top right, filled square) has all daughters unaffected (or carriers) and no affected sons (here, one affected and one unaffected). The pattern is consistent with
- A
Autosomal recessive
- Bcheck_circle
X-linked recessive
- C
Mitochondrial
- D
Autosomal dominant
Explanation
X-linked recessive: affected fathers pass X^c only to daughters (carriers). Sons inherit Y from father; affected sons get X^c from a carrier mother.