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
Which of following is the feature of Y chromosome? 
Select and explain. 
A. Acrocentric, B. Telocentric, C. Submetacentric, D. Metacentric
A: Acrocentric
Answer: A: Acrocentric 
Explanation: 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