Across 4. chromosomes duplicate and the copies remain attached to each other 5. (of a cell or nucleus) having a single set of unpaired chromosomes 8. the region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division 13. newly formed plasma membrane that expands outward until it reaches the old plasma membrane and fuses with thi membrane 14. nucleus containing two complete sets of chromosomes, one from each parent 15. in the nucleus chromosomes condense and become visible . in the cytoplasm ad the spindle form 16. to produce human tissue

Down 1. chromosomes separate into two genetically identical groups and move to opposite end of the spindle. 2. the region of a chromosome to which the microtubules of the spindle attach, via the kinetochore, during cell division. 3. the production of a new individual 6. nuclear membrane form around each of two sets of chromosomes the chromosomes begin to spread out and the spindle begins to break down 7. a minute cylindrical organelle near the nucleus in animal cells, occurring in pairs and involved in the development of spindle fibers in cell division. 9. the nuclear membrane breaks apart and the spindle starts to interact with chromsomes 10. permits growth and repare 11. a complex of proteins associated with the centromere of a chromosome during cell division, to which the microtubules of the spindle attach. 12. cell splits into 2 daughter cells each with the same number as the parent