Should I retake classes to boost my gpa?

Hello I have a couple questions that I am struggling with with regards to my path of pre dental. I am currently a sophomore and my gpa is not great. When looking at my pre reqs for dental school I received Cs in both of my gen chem classes, a BC in my gen bio, a C in gen bio II, C in organic chem I and a D in genetics( which I am planning on retaking) I have an overall gpa of roughly a 2.9-3.0now with this semester done. I am currently working as a dental assistant and have been for over 6... Should I retake classes to boost my gpa?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Pre-Dental Source Type: forums