Across 3. is one copy of a newly copied chromosome which is still joined to the other copy by a single centromere 5. the macromolecular machine that segregates chromosomes to two daughter cells during mitosis 8. stages that occur dring cell division 10. are signaling protiens received of the plasma membrane 11. is an agent that influnecue the activities of a cell 12. process of programmed cell death that occurs in multicellular organisms

Down 1. the stage in which processes such as plasma growth takes place 2. A sister chromatid refers to either of the two identical copies formed by the replication of a single chromosome 4. any biological cell forming the body of an organism; that is, in a multicellular organism, any cell other than a gamete, germ cell, gametocyte or undifferentiated stem cell 6. the phase of the cell cycle in which a typical cell spends most of its life 7. a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosome 9. the process during cell division in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells