The genome of a eukaryotic cell is organized into multiple chromosomes. Each species has a characteristic chromosome number. Species Chromosome number Drosophila pea porpoise bat humans potato fern . Human Genome . . . B. Each chromosome contains hundreds or thousands of genes. .
Duplicated chromosomes maintain a unique structure during cell division . . .
Interphase Three sub-phases . . . Mitotic phase- Cell division takes place. Two sub-phases . . Stages of Mitosis A. Prophase- 1. B. Prometaphase- 1.