Are chromosomes visible during interphase?
No, chromosomes are not visible in interphase. Chromosomes only become visible during prophase of mitosis when they wind up into shorter and thicker coils that are thick enough to see with a microscope. The thin, long strands of chromatin are the normal form of chromosomes, and that’s what it looks like during interphase. Under the microscope it just looks like little dots or grains or maybe blobs.