- 1. Describe 2 of the experiments we discussed in class that lead to discoveries on the structure and function of DNA. [6 Marks, C]
- 3.The centromere is the place where the chromatids are __ 4.The stages making a cell ready for cell division is called the __ . 5. The cell cycle has four stages including __ __ __ and __ 6.The longest stage of the cell cycle is __ because it involves __ 7.The S stage is necessary because this is where the cell __ 8. Cell division is described by the name __ and is divided into __ phases. 9.Cells go through mitosis to __ and to replace cells that have __ ,have been __ or __ 10. The first phase of mitosis is __ and involves the __ of chromosomes, the beginning of the breakdown of the __ , appearance of the __ with __ that will become the __ 11. The next phase of mitosis is called __ , and involves the complete breakdown of the __ with the complete formation of the __ and the chromosomes moving 12. The next phase of mitosis is __ and starts when the chromosomes are aligned along the center of the cell or the __ 13. The spindle is attached to the chromosomes at a point called the __
- 2. The process where the cytoplasm divides is called __ square B. anaphase M. cytokinesis N. telophase T. prophase
- 3. How are tissues organs, and organ systems related? 4. Name the 3 fissues of plants and describe their functions.
- 15) Mammals only have two legs a) True b) False 19) Feathers help protect birds from water a) True
