This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Obstructive Lung Diseases, Subject name: Pathology
[{'content': 'Alpha 1 antitrypsin deficiency mechanism of transmission - \nSelect and explain. \nA. Autosomal recessive, B. Autosomal dominant, C. X linked recessive, D. X linked dominant', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Autosomal recessiveAutosomal recessive disordersMetabolicHematologicalEndocrineSkeletalNarvouso Cystic fibrosiso Phenylketonuriao Galactosemiao Homocystinuriao Lysosomal storage diso a1-antitrypsin deficiencyo Wilson diseaseo Hemochromatosiso Glycogen storage disorderso Sickle cell anemiao Thalassemiaso Congenital adrenal hyperplasiao Albinismo EDS (some variants)o Alkaptonuriao Friedreich ataxiao Spinal muscular atrophyo Neurogenic muscular atrophies", 'role': 'assistant'}]