Introduction and Objectives
In this laboratory project, you will investigate the inheritance of traits (genes) in a small plant named Brassica rapa. Specifically, using the Mendelian model, you will develop hypotheses concerning: (1) the presence or absence of anthocyanin, which is a red-purple pigment found in stems; (2) the presence or absence of variegation, green and white leaves or (3) the expression of yellow-green color in cotyledons, leaves and stems. After formulating hypotheses and writing a protocol, you will carry out two separate experiments to test your hypotheses. Both experiments will require approximately 8 weeks to complete and will be considered a continuing Independent Research Project (I.R.P.). Working in pairs, you the students are solely responsible for the planting and caring of plants, completing the genetic crosses, and collecting the scientific data. Then, working independently, each of you will design and write a Scientific Paper, reporting the results of your experiments.
Since performing these experiments will be a collaborative effort, all data (from all
student pairs) will be pooled upon the completion of each experiment. You may share
information for the Materials and Methods and Results sections of your
papers. However, the Introduction, Discussion, and References Cited
sections must be the product of your own personal library research and creative thinking.
It is highly suggested that you begin your library research early , ie., LIAS and
Internet. Remember, your Introduction is due in my office on or before
We will be performing Experiment One and Experiment Two this semester.
Overview of Experiment One
Overview of Experiment Two
Overview of Experiment Three
Main Page | Introduction and Objectives | Scientific Investigation | Experimental Procedures | Writing Procedures | Mendelian Inheritance | Monohybrid and Dihybrid Exercises | Reference | Miscellaneous | Overview of Experiment One | Overview of Experiment Two | Overview of Experiment Three |