Replication of DNA occurs in which phase of interphase?

S phase

Explanation:

Interphase is one of the two phases of cell cycle (other being mitotic phase).

Interphase is characterized by cell growth and DNA replication. It is subdivided into:

• G1 phase (the first gap phase) - the cell grows and becomes larger and copies organelles

• S phase - DNA and microtubule-organizing structure-centrosome are duplicated.

• G2 phase - proteins and organelles are formed.

G2 phase is followed by the beginning of mitotic phase.