What percentage of the chromosomal DNA in a cell during $G_1$ is still present in that same cell later in the same mitotic cell cycle in prophase and in telophase?
- Aprophase 50%; telophase 25%
- Bprophase 50%; telophase 50%
- Cprophase 100%; telophase 50%
- Dprophase 100%; telophase 100%