Reference no: EM132842958

Lab 10 -Mitosis and Meiosis - Labste Labster

Complete the simulation on mitosis and answer the questions in this worksheet as you go along. It will be helpful to print out this worksheet.

1. Where does the chemical you are asked to study (for its effects on cell division) come from?
2. When a cell divides, what do the daughter cells need from their parent cell?
3. What is found in the substance known as chromatin?
4. What are three levels of organization in chromosomes starting with a DNA molecule and going up in size from that? Describe each of the lowest three levels by giving their names as a description of how the structure is arranged.
5. What does each duplicated chromosome consist of?
6. In human body cells, how many chromosomes can be found? How many came from each of the parents' cells?
7. What are the four phases of the cell cycle? (Three of them occur during interphase). Describe the events that occur during each stage.
8. What happens during the G2 checkpoint before the cell is allowed to proceed in its cell cycle?
9. What are the three chemicals used to treat the onion root tip for examination by microscopy?
10. When you examine the onion root tip cells, what is stained in red?
11. What are the four general stages of mitosis? For each, describe what a plant cell looks like in each stage.
12. What are the two sex cells produced by meiosis?
13. How many daughter cells are produced after mitosis compared to meiosis?
14. What is the ploidy of daughter cells produced after meiosis compared to the daughter cells produced after mitosis?
15. If a cell contains two sets of chromosomes, what is the correct term for that type of cell?
16. What are the identity of the structures in the fluorescence microscope samples that are colored blue, red, and green ?
17. What is the identity of two exact copies of a chromosome that are attached at a centromere ?
18. What are the two regulatory proteins that are needed for cell cycle checkpoints to be passed ?
19. What cell cycle checkpoint occurs during mitosis ? What must occur during this checkpoint for it to be passed ?
20. What is the difference in the approximate number of cells in the 24-hour control group versus the 24-hour experimental group?
21. What do you conclude is the effect of the chemical tested on the cells?
22. What is the actual effect that the chemical has on the molecules of the cell, discovered by the research group?
23. What is the name of the chemical you tested and one of its uses in medicine?