Across
- 2. one of two identical “sister” parts of a duplicated chromosome
- 5. repetitive DNA at the end of a eukaryotic chromosome
- 7. type of bond between atoms in which the electrons are shared
- 8. division of the cytoplasm to form two separate daughter cells
- 9. mass of rapidly dividing cells that can damage surrounding tissue
- 14. Pairs with Guanine
- 16. subunit of which nucleic acids are composed; made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base
- 17. developing stage of a multicellular organism
- 18. region of a chromosome where the two sister chromatids attach
- 19. phase of mitosis/Meiosis in which the chromosomes/chromatids separate and move to opposite ends of the cell
- 20. type of reproduction in which cells from two parents unite to form the first cell of a new organism
- 22. Adenine, Thymine, Cytosine and Guanine are all examples of this
- 27. phase of mitosis/meiosis in which the chromosomes line up across the center of the cell
- 29. structure in an animal cell that helps to organize cell division
- 30. A pairs with T and C pairs with G
- 32. sequence of DNA that codes for a protein and thus determines a trait; factor that is passed from parent to offspring
- 34. phase of mitosis/meiosis in which the distinct individual chromosomes begin to spread out into a tangle of chromatin
- 36. process of reproduction involving a single parent that results in offspring that are genetically identical to the parent
- 37. principle enzyme involved in DNA replication
- 38. series of events in which a cell grows, prepares for division, and divides to form two daughter cells
- 39. part of eukaryotic cell division during which the cell nucleus divides
- 40. the shape of DNA
Down
- 1. process in which cells become specialized in structure and function
- 3. 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)
- 4. stage of early development in mammals that consists of a hollow ball of cells
- 6. cell with limited potential to develop into many types of differentiated cells
- 7. threadlike structure within the nucleus that contains genetic information that is passed on from one generation to the next
- 10. disorder in which some of the body's cells lose the ability to control growth
- 11. principle that bonds in DNA can form only between adenine and thymine and between guanine and cytosine
- 12. weak attraction between a hydrogen atom and another atom
- 13. one of a group of external regulatory proteins that stimulate the growth and division of cells
- 15. entire set of genetic information that an organism carries in its DNA
- 21. process of copying DNA prior to cell division
- 23. Pairs with Adenine
- 24. period of the cell cycle between cell divisions in which the cell grows
- 25. first and longest phase of mitosis/meiosis in which the genetic material inside the nucleus condenses and the chromosomes become visible
- 26. cells that are capable of developing into most, but not all, of the body's cell types
- 28. Pairs with Thymine
- 31. the process of programmed cell death
- 32. Pairs with Cytosine
- 33. substance found in eukaryotic chromosomes that consists of DNA tightly coiled around histones
- 35. unspecialized cell that can give rise to one or more types of specialized cells