Across
- 2. Refers to organisms or cells having two copies of each specific chromosome, that is, having a paired set of chromosomes.
- 3. Cell division which the new cells are genetically identical.
- 7. Small organs of the cell which undertake the processes which happen inside cells.
- 8. An organised representation of an organism’s chromosomes. Typically going from size order from largest to smallest.
- 10. An acronym for this is DNA. It contains fours bases - adenine, guanine, cytosine and thymine - which code for genetic instructions.
- 14. It is an egg or sperm cell.
- 16. Cells which are found in the gonads.
- 17. It is any cell with a membrane-bound nucleus.
- 18. A stage of mitosis and meiosis in which the cells are in between cell division.
- 20. It is an organelle containing RNA which is the major place of protein production in cells.
- 21. It is the position where the chromatids are held together. It is generally in the centre of the chromatids.
- 24. It is the second stage of mitosis in which chromosomes align along the equator of the spindle.
- 25. An organism with half the amount of chromosomes - unpaired chromosomes.
- 26. It is an organelle found in plant, algae, fungi and bacteria cells. It is a semi-rigid structure found outside the cell membrane.
- 27. Cell division where the new cells each contain half the number of chromosomes as the original cell.
- 28. It is base sequences which code for a specific protein that are inherited on chromosomes.
- 29. The microscopic structures which are the building blocks of all living things.
Down
- 1. This is the process of which the cell is programmed to die.
- 4. A structure containing proteins and DNA, which is wound up tightly.
- 5. Any cells or organism without a membrane-bound nucleus.
- 6. It is the organelle which is vital when the spindle fibres are being created.
- 9. They are protein structures which divide the chromosomes in a cell during cell division.
- 11. The alternate forms of genes.
- 12. They are made up of amino acids and produce a phenotype.
- 13. They are cells in the body that are not found in the gonads.
- 15. It is the total amount of genes in an organism or cell.
- 19. It is the first stage of mitosis in which the nuclear membrane begins to disintegrate and the spindle begins to form.
- 22. It is a membrane bound organelle in a cell which is said to be the ‘control centre’ of the cell as it controls all cellular activity.
- 23. It is the third stage of mitosis in which the the one cells is split in two and nuclear membrane starts to form again.