Healthy parents with unremarkable family history have the child with multiple developmental defects. Cytogenetic analysis revealed the trisomy 13 in the somatic cells (Patau syndrome). What phenomenon has caused the defects?
- A Recessive mutation
- B Dominant mutation
- C Chromosomal mutation
- D Somatic mutation
- E Abnormal gametogenesis
Правильна відповідь: E. Abnormal gametogenesis
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