Unit 3

1. one of two identical "sister" parts of a duplicated chromosome.
5. division of the cytoplasm to form two separate daughter cells plant cells: cell plate and animal cells: cleavage furrow.
7. The second growth phase of the cell cycle, consisting of the portion of interphase after DNA synthesis occurs, prepares for M phase.
8. second phase of mitosis, during which the chromosomes line up across the center of the cell.
10. series of events that cells go through as they grow and divide.
12. An abnormal tissue mass that can spread into neighboring tissue and to other parts of the body; a cancerous tumor.
15. a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
16. disorder in which some of the body's cells lose the ability to control growth.
18. Division of the nucleus. Continuous process that is divided into four phases, Prophase, Metaphase, Anaphase, and Telophase, makes identical body cells.
20. in between period of the cell cycle between cell divisions, includes G1, S and G2.

2. the third phase of mitosis, during which the chromosome pairs separate and move toward opposite poles.
3. first and longest phase of mitosis, during which the chromosomes become visible and the centrioles separate and take up positions on the opposite sides of the nucleus.
4. The first gap, or growth phase and creation of new organelles.
6. The synthesis phase of the cell cycle; the portion of interphase during which DNA is replicated.
9. a mass of abnormal cells that remains at the site of origin.
11. A mass of abnormal cells that develops when cancerous cells divide and grow uncontrollably.
13. phase of mitosis in which the distinct individual chromosomes begin to spread out into a tangle of chromatin, 2 nuclear envelopes form, nucleolus become visible.
14. Cells that do not contain nuclei, reproduce asexually and use haploid cells.
17. one of a family of proteins that regulates the cell cycle in eukaryotic cells.
19. granular material visible within the nucleus; consists of DNA tightly coiled around proteins.