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: Anatomy
[{'content': 'Which of following is the feature of Y chromosome? \nSelect and explain. \nA. Acrocentric, B. Telocentric, C. Submetacentric, D. Metacentric', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A normal chromosome appear constricted at the centromere, this divides each chromosome into two arms. The sho arm is designated as p arm and the long arm is designated as q. Ref: Primate Anatomy: An Introduction By Friderun Ankel-Simon, 3rd Edition, Page 552 ; Clinical Laboratory Medicine By Kenneth D. McClatchey 2nd Edition, Page 568 ; Folia Biologica 2001, Page 146', 'role': 'assistant'}]