Across
- 1. an abnormal, but non-cancerous collection of cells which do not invade other sites of the body
- 4. mass of rapidly dividing cells that can damage surrounding tissue
- 5. cycle series of events in which a cell grows, prepares for division, and divides to form two daughter cells
- 6. cell unspecialized cell that can give rise to one or more types of specialized cells
- 9. one of two identical "sister" parts of a duplicated chromosome
- 13. region of a chromosome where the two sister chromatids attach
- 15. phase of mitosis in which the distinct individual chromosomes begin to spread out into a tangle of chromatin
- 19. type of asexual reproduction in which an organism replicates its DNA and divides in half, producing two identical daughter cells
- 20. stage of early development in mammals that consists of a hollow ball of cells
- 22. process by which a cell divides into two new daughter cells
- 24. developing stage of a multicellular organism
- 29. cells that are capable of developing into most, but not all, of the body's cell types
- 30. unstable form of a chemical element that releases radiation as it breaks down which can damage cells; used to diagnose and treat some types of cancer
- 32. treatment that uses drugs to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing
- 33. one of a family of proteins that regulates the cell cycle in eukaryotic cells
- 34. type of reproduction in which cells from two parents unite to form the first cell of a new organism
Down
- 2. one of a group of external regulatory proteins that stimulate the growth and division of cells
- 3. phase of mitosis in which the chromosomes line up across the center of the cell
- 7. division of the cytoplasm to form two separate daughter cells
- 8. process in which cells become specialized in structure and function
- 10. the process of programmed cell death
- 11. cell with limited potential to develop into many types of differentiated cells
- 12. phase of mitosis in which the chromosomes separate and move to opposite ends of the cell
- 14. substance found in eukaryotic chromosomes that consists of DNA tightly coiled around histones
- 16. process of reproduction involving a single parent that results in offspring that are genetically identical to the parent
- 17. network of microtubules that forms within a dividing eukaryotic cell; help to move chromosomes into the daughter cells during mitosis
- 18. threadlike structure within the nucleus that contains genetic information that is passed on from one generation to the next
- 21. cells that are able to develop into any type of cell found in the body (including cells that make up the extraembryonic membranes and placenta)
- 23. abnormal cells which divide without control and can invade nearby tissues
- 25. part of eukaryotic cell division during which the cell nucleus divides
- 26. first and longest phase of mitosis in which the genetic material inside the nucleus condenses and the chromosomes become visible
- 27. structure in an animal cell that helps to organize cell division
- 28. disorder in which some of the body's cells lose the ability to control growth
- 31. period of the cell cycle between cell divisions