Page 133 - Science Course 3 (Book 1)
P. 133

Mo4-L1a: What is the Cross-Pollination Experiment?




                1. Mendel removed the stamens from the purple                       What is the Conclusion of
                    flower.                                         Mo4-L1b           Mendel’s Experiment?

                2. He transfered pollen from the stamens of the    KEY CONCEPTS:
                    white flower to the pistil of the purple flower.   1. What did Mendel conclude about inherited traits?
                                                                  2. How do dominant and recessive factors interact?
                3. The pollinated of pistil of the purple flower grew
                     into a pea pod. Then, Mendel planted the peas.
                                                                              Vocabulary A-Z

                               Key Concept                                    Let us learn some vocabulary
                     What is the Cross-Pollination Experiment?
                                                                  genetics
                     Why did Mendel perform cross-pollination
                                 experiments?                     the study of how traits are passed from parents to
                                                                  offspring.


















                                                                  dominant trait
                                                                  a genetic factor that blocks another genetic factor.

                                                                                      Parents









                                 SUMMARY
                                                                                     Bb     Bb
                    What is the Cross-Pollination Experiment?

                Genetics is the study of how traits are passed
                          from parents to offspring.

                      Mendel studied genetics by doing
                 cross-breeding experiments with pea plants.







                                                                     bb           Bb           Bb          BB


                                                                   recessive trait
                                                                   a genetic factor that is blocked by the presence of a
                                                                   dominant factor
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