Cell Cycle
Across
- 2. Divison of the cytoplasm
- 5. All cells are derived from pre-existing cells
- 8. All ___ cells store genetic information in chromosomes
- 11. The DNA of ___ prokaryotes is one, circular chromosome attached to the inside of the cell membrane.
- 13. Reproduction that involves a single cell dividing to make 2 new, identical daughter cells
- 16. discrete unit of hereditary infor consisting of a specific nucleotide sequence
- 17. “Putting it all together”
- 18. sister chromatids at opposite poles. A nuclear envelope forms around each set of sister chromatids
- 19. two division produce 3 polar bodies that die and 1 egg
- 20. Homologs pair. Crossing over occurs.
Down
- 1. produces gametes with one copy of each chromosome and thus one copy of each gene
- 3. alternative version of a gene (dominate and recessive Aa)
- 4. Divison of the Nucleus. Also called Karyokinesis
- 6. duplicated ___ are called chromatids and are held together by the centromere
- 7. pieces of chromosomes or genes are exchanged
- 9. reproduction that involves two cells (egg and sperm) joining to make a new cell that is NOT identical to the original cells
- 10. Each new cell will then have an identical copy of the DNA
- 12. Sister chromatids are pulled apart to opposite poles of the cell by kinetochore fibers
- 14. the phase of the cell cycle in which a cell copies its DNA to prepare for mitosis
- 15. Chromosomes, attached to the kinetochore fibers, move to the center of the cell