Pathology Which of the following genetic aberrations is not a causative mechanism in cases of Prader-Willi syndrome? A Gene deletions B Defective genomic imprinting C Single nucleotide polymorphisms (SNPs) D Uniparental disomy 💡 Explanation Which of the following genetic aberrations is not a causative mechanism in cases of Prader-Willi syndrome? ✓ Correct Answer: C. Single nucleotide polymorphisms (SNPs)