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Genetics HCP Final Exam Questions And Answers
Genetics HCP Final Exam Questions And Answers 
 
 
Trisomy 13 (Patau syndrome) - ANSWERS -1/10,000 births; 
Phenotype: orofacial clefts, microphthalmia (small formed eyes), and polydactyly 
-An error during egg and sperm formation --> extra chromosome. 
-can come from the mother or father. 
 
95% die within first year of life 
Estimated that 95% of conceptions lost spontaneously during pregnancy 
 
Patau syndrome - ANSWERS Genotype 47, +13 
 
Phenotype: Microcephaly and abnormal brain de...