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