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CLINICALPATHOLOGY-36
IMMOTILE CILIA SYNDROME (Primary Ciliary Dyskinesia — PCD) causes male infertility through a specific structural defect. Which is the MOST COMMON ultrastructural defect in PCD?
A. Absence of the central pair of microtubules
B. Transposition of outer microtubule doublets
C. ABSENCE OF OUTER DYNEIN ARMS (the motor proteins responsible for ciliary movement)
D. Absence of the mitochondrial sheath
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