Q: Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
Question: Is the alpha 2C Del322-325 adrenergic receptor polymorphism associated with heart failure due to idiopathic dilated cardiomyopathy in black Africans?
Answer: Homozygosity for the alpha 2C Del322-325 polymorphism is not associated with an increased risk for heart failure due to idiopathic DCM in black South Africans.
A:
no