Across
- 3. Chemical structures required for the structure, function, and regulation of the body's tissues and organs
- 7. The second stage of cell division during which the chromosomes become attached to the spindle fibres.
- 10. structural layer surrounding some types of cells, situated outside the cell membrane providing support and protection
- 11. The constriction point of a chromosome, which divides the it into two sections
- 12. A structure that forms a spindle in mitosis or meiosis that is responsible for moving chromosomes during nuclear division
- 15. The stage in the development of a cell following mitosis or meiosis, during which the nucleus is not dividing
- 17. a membrane-bound structure that controls the most important functions of the cell, such as the growth and reproduction of the cell
- 19. small cylindrical organelles that help the cell to divide and replicate themselves
- 20. Any cell of a living organism other than the reproductive cells
- 24. Different forms of the same gene, usually dominant or recessive
- 25. An organism consisting of a cell or cells bound by a membrane and with a distinct nucleus
- 26. Controlled cell death
- 27. A type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus
- 28. The final phase of cell division where the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed
Down
- 1. The number and visual appearance of the chromosomes in the cell of an organism
- 2. The complete set of genetic material present in a cell or organism
- 4. Specialised structures within a cell that carry out specific functions
- 5. Haploid cells that unite with a similar type of cell to reproduce
- 6. The chain of nucleotides that contain genetic information, commonly abbreviated as DNA
- 8. Cells that contain two complete sets of chromosomes and reproduce by mitosis making daughter cells that are exact replicas
- 9. Cells in multicellular organisms that directly produce gametes
- 13. A usually single-celled organism without a distinct nucleus or membrane-bound organelles
- 14. The first stage of cell division where chromatids are paired up and the nuclear envelope disappears
- 16. Organelles that produce proteins needed to repair, damage or direct chemical processes
- 18. The smallest structural and functional unit of an organism, which consists of cytoplasm and typically a nucleus enclosed in a membrane
- 21. A long coiled strand of DNA found in the nucleolus
- 22. A type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell
- 23. A region of DNA that codes for a specific protein or trait
- 29. Cells that contain contain only one complete set of chromosome cells are a result of the process of meiosis