asp.net MVC How to retrieve the selected radiobutton value

Question

I am making a small project in mvc

  i have the following fields :

Id,Name,Age,Gender

 

I am using LINQ to SQL 

 

Everything is working fine but in Edit mode how do i retrieve the selected Gender

My Index action,create action,Edit action are working fine but in edit mode how do i retrieve the selected gender...?? I am using RadiobuttonFor   , for gender