Experiment 3: Characterizing the F2 generation |
When members of the F1 generation are crossed to one another, the resulting organisms are known as the F2 generation. In your previous study, if you looked at enough F2 individuals, you should have found that there are individuals that express the recessive trait as well as individuals that express the dominant trait. Our next set of experiments are aimed at answering some questions about the F2 individuals. To do this, we will use a specific type of cross, known as a "test-cross". In a test cross, we cross the organism under study with an organism that expresses recessive traits and which breeds true. A specific type of test cross involves the recessive parental strain - this is known as a "backcross". |
Experiment 3: Design an series of experiments to answer the following questions.
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