This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Autosomal dominant gene is one which is expressed in \nSelect and explain. \nA. Homozygous state, B. Heterozygous state, C. Both, D. All of the above', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Heterozygous state", 'role': 'assistant'}]