This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'ABO blood group inheritance is an example of \nSelect and explain. \nA. A. Co dominance, B. B. Mitochondrial inheritance, C. C. Allelic exclusion, D. D. Sex linked inheritance', 'role': 'user'}, {'content': 'Answer: A \nExplanation: When both of the allels of a gene pair contribute to the phenotype ,this is called as Co dominance. Good examples of co dominant inheritance are; Histocompatibility Blood group antigens Refer robbins 9/140', 'role': 'assistant'}]