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