The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Syndrome which is characterized by 2X chromosomes and 1Y chromosome is:   (A) Kleinfelter syndrome   (B) Down syndrome   (C) Turner syndrome   (D) Marfan syndrome
['(A) Kleinfelter syndrome <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Kleinfelter syndrome \n (B) Down syndrome \n (C) Turner syndrome \n (D) Marfan syndrome <> possible answers', '  Syndrome which is characterized by 2X chromosomes and 1Y chromosome is: <> context@']