Study Guide 2-1

Mendel’s Study

Vocabulary

• Biological inheritance
• Trait
• Stigma
• Style
• Ovary
• Carpel
• Anther
• Filament
• Stamen
• Perfect flower

Competencies

1. Define and describe the scope of the scientific field of genetics.
2. Compare and contrast transmission genetics and molecular genetics.
3. Explain the 19th-century “generative fluid” theory.
4. Predict the outcome of reproductive crosses between red- and white-flowered plants using the generative fluid theory.
5. Describe the long-term expected outcome of multiple rounds of reproduction using the generative fluid theory.
6. Explain why that prediction invalidates the generative fluid theory.
7. Describe the reproductive anatomy of a flower, and identify the main male and female structures of a flower.
8. Describe how Gregor Mendel tested his pea plants to show that they were true-breeding before he began his experiments.
9. Describe how Mendel performed cross-breeding experiments using two different varieties of parent plants, specifically on seed shape and seed color.
10. Describe how Mendel performed his experiments on self-fertilization of pea plants.
11. Describe in quantitative detail Mendel’s results using single traits, for all 3 generations we described in class (P, F1, and F2).
12. Explain why these results can and cannot be explained by the generative fluid theory.
13. Explain the scope of his results–how many traits in how many species did Mendel claim his observations applied to?