How do deer antlers differ biologically from true antelope horns?

Answer

Deer antlers are composed entirely of bone and are typically shed and regrown annually

Antlers are composed entirely of bone and are typically shed and regrown on an annual cycle, contrasting with the permanent nature of true antelope horns.

How do deer antlers differ biologically from true antelope horns?
mammalwildliferuminantherbivoreantelope