Onion Tip Mitosis Scientific Investigation
Before you begin the scientific investigation below, make sure to download the Onion Tip Mitosis Scientific Investigation Report. As you complete this scientific investigation, fill in any needed information on the report template. If you need more information about each section of the report, please visit the Developmental Module.
This scientific investigation is available below or in a printable version.
Introduction
DNA is duplicated in eukaryotic cells in the process of mitosis. Following interphase, mitosis is the process of cellular division responsible for the creation of two identical daughter cells from one parent cell. During the process of mitosis, the chromosomes pass through several phases known as prophase, metaphase, anaphase, telophase, and cytokinesis. Each phase contributes to the orderly distribution of the replicated parent cell’s replicated chromosomes.
Objectives
In this scientific investigation, you will:
Hypothesis
Using the Procedure and Data Collection section below, read through the procedural information for this scientific investigation. Based on your understanding of the procedure, develop your own hypotheses which describe your expected results. You should consider the following questions: What phase of mitosis will be observed in the greatest percentage? Explain your answer. Record your hypotheses in the Hypothesis section of your Onion Tip Mitosis Scientific Investigation Report.
Equipment and Materials
Procedure and Data Collection
Data
Use the table provided in the Data section of your Onion Tip Mitosis Scientific Investigation report to record your data from this scientific investigation. The data table is also shown below.
Sketches of Mitosis
Prophase | Metaphase | Anaphase | Telophase |
|
Data Table
Phase of Mitosis | Count | Percentage | Time (minutes) |
Prophase | |||
Metaphase | |||
Anaphase | |||
Telophase |
Data Analysis
In the Data Analysis section of your Onion Tip Mitosis Scientific Investigation Report, provide responses to the following questions. Make sure to completely answer each question.
Conclusion
Using the Conclusion section of your Onion Tip Mitosis Scientific Investigation Report, compose three to four sentences describing an overall conclusion based on your data. Was your hypothesis supported or not, and how do you know? Use the data and notes that you collected from you experience to form you conclusion. Make sure that you include information that you gained from data analysis to support your conclusion.
Experimental Sources of Error
On your Onion Tip Mitosis Scientific Investigation Report, provide responses to the following questions: Are there any sources of error? If so, what are they, and what could be done to minimize error?
Reflection
Once you have completed your scientific investigation, respond to the following questions in a brief 4-5 sentence paragraph response.
Once you have completed your scientific investigation and reflection, please submit your work to the dropbox.
Once you have completed this module, please complete the module test.