the activities in the cell cycle occur during specific phases in which phase of the cell cycle is DNA replicated

In "Interphase" phase of the cell cycle is DNA replicated

Explanation:

In the cell cycle two important phases are there i. e. interphase and mitotic phase. In interphase, the cell tends to grow and also replication of DNA takes place. But in the case of mitotic phase, the previously replicated DNA and the cytoplasmic contents gets separated and hence the cell division takes place. Interphase is the daily routine of the cell cycle. The cells devotes most of the time in their life in interphase that happens exactly before the mitosis.