Across
- 5. the control centre of an atom.
- 6. 1 set of chromosome
- 7. a grid of chromosomes from 1-23.
- 9. a cylindrical cell structure composed mainly of a protein called tubulin.
- 10. small section of DNA.
- 12. the first stage of cell division, before metaphase.
- 14. acid another word for DNA
- 17. sperm or egg cells.
- 19. a type of structure that a cell conducts a specific function.
- 22. are between the first and second division of meiosis.
- 23. long strand of DNA.
- 25. cell also called body cells eg.skin cells.
- 26. an alternate form of a gene.
Down
- 1. is a substance that contains amino acids.
- 2. cell is a sequence of cells which develop into eggs and sperm.
- 3. wall a protective layer that protects the cells.
- 4. have cell wall only in plants and fungi.
- 8. the final phase of cell division, between anaphase and interphase.
- 10. all of the organism's DNA.
- 11. daughter cells are different to parent and each other.(also occurs in gametes)
- 12. have cell wall is usually chemically complexed.
- 13. fibre a protein structure that divides the genetic substance in a cell.
- 15. part of a chromosome that joins two chromatids together.
- 16. 2 sets of chromosomes
- 18. the death of cells that occurs controlled part of an organism's growth.
- 20. the second stage of cell division, before prophase.
- 21. an area found in the cytoplasm of prokaryotic cells.
- 24. some unicellular organisms reproduce asexually (also occurs in somatic cells)