Invisble cell during interphase?

Interphase. If a cell is not undergoing mitotic cell division, the cell is in interphase. In this phase, the chromosomes are invisible through a light microscope ... It is the preparation period preceding mitosis, in which the cell grows and it's DNA is replicated

"Interphase. If a cell is not undergoing mitotic cell division, the cell is in interphase. In this phase, the chromosomes are invisible through a light microscope ... During Gap phase 1 biosynthetic activity in the cell is increased as the cell grows and replicates it's organelles whilst producing spare proteins."