Cell Cycle

4. are protein complexes associated with centromeres.
6. ___ yields nonidentical daughter cells that have half as many chromosomes as the parent cell. (Variation of cell division)
9. in ____, the cohesion’s are cleaned by an enzyme called separase.
12. DNA molecules in a cell are packaged into ______.
13. ___ is the division of genetic material in the nucleus.
15. nonreproductive cells have two sets of chromosomes.
18. All the DNA in a cell constitutes the cell’s _____.
20. the ____ is the narrow of the duplicated chromosome, where the two chromatids are most closely to attach.
21. An ___ (a radial array of short microtubules) extends from each centrosome.
22. The ____ ___ is a structure made of microtubules that controls chromosomes movement during mitosis.

1. The division of cytoplasm.
2. define the phase that consist of cell growth and copying of chromosomes in preparation for cell division.
3. At metaphase, the chromosomes are all lined up at the ____ ____, a plane midway between the spindle’s two poles.
5. How many stages does mitosis have?
7. During ____, some spindle microtubules attach to the kinetochores of chromosomes and begin to move to the chromosomes.
8. The continuity of life based on the reproduction of cells is known as?
10. ;
11. In the interphase there are three phases. What phase do chromosomes duplicate?
13. _____ depend on cell division of development from a fertilized egg, growth, and repair.
14. Each duplicated chromosome has two ____ _____,attached along their lengths by cohesins.
16. Eukaryotic chromosomes consist of ____, a complex of DNA and protein that condenses during cell division.
17. ___ is a special type of division that can produce sperm and egg cells.
19. define the phase that consists of both mitosis and cytokinesis.