Across
- 4. the stage of mitosis in which the nuclear membrane breaks down.
- 7. a type of mitotic reproduction seen often in hydra and yeast cells.
- 10. the main advantage of sexual reproduction is a remixing of the DNA which creates
- 13. a stage of development that occurs after an embryo has been a blastocyst; the embryo is around 16 cells
- 15. a hollow ball of cells that is one of the first developmental stages of an animal embryo.
- 16. the shape of the chromosome found in a prokaryote
- 17. the use of chemicals that destroys cells that are dividing too fast.
- 18. the series of growth duplication and divisions a cell goes through.
- 20. microtubules from the cytoskeleton assemble to form a structure that pulls on the chromosomes, this structure is called the
- 21. a step in mitosis where sister chromatids separate.
- 23. a term that describes stem cells that will only grow into cells of a closely related type, like all blood cells.
- 25. adult stem cells are often harvested from bone marrow and used to treat bone marrow cancer, which is called
- 26. an enzyme that can move a high energy phosphate group between two molecules.
- 27. the scientific term for programmed cell death
- 29. the stage when the cell copies its nuclear DNA.
- 30. a group of diseases that is caused by uncontrolled cell division.
- 31. a protein that can turn a kinase on or off
Down
- 1. the process that divides the cytosol and organelles.
- 2. an area at the center of the chromosome that holds two chromatids together.
- 3. a form of reproduction that is based on mitosis and is common in flatworms, sea stars, and planaria.
- 5. a term that describes a cell which can grow into any other type of cell.
- 6. a tumor is said to be this if its cells are likely to spread through the body.
- 8. a line of cancer cells that have been used for research all over the world
- 9. the asexual reproduction process that is used by prokaryotes.
- 11. a growth factor that increases the growth of red blood cells.
- 12. the ratio of volume and this value controls how large the cell becomes.
- 14. a section of DNA that controls the rate of the cell cycle
- 19. there are three of these stages, each one involves the cell growing.
- 22. a small protein that is used to wrap the DNA in an organized way is called a(n)
- 24. a single monomer of deoxyribonucleic acid is known as ___.
- 28. a unique type of body cell that can divide and renew itself for long periods of time.
