Experimental level Conceptual level 1.For each of seven characters, Mendel P plants тT х п cross-fertilized two different true- breeding strains. Keep in mind that each cross involved two plants that differed in regard to only one of the seven characters studied. The illustration at the right shows one cross between a tall and dwarf plant. This is called a P (parental) cross. Tall Dwarf Note: The P F1 seeds All Tt 2.Collect the F1 generation seeds. The following spring, plant the seeds and allow the plants to grow. These are the plants of the F1 generation. cross produces seeds that are part of the F1 generation. Fi plants Tt Self- fertilization Tall Tall тетumzauоп Tall Tall Self- 3. Allow the F1 generation plants to self- fertilize. This produces seeds that are part of the F2 generation. fertilization F2 seeds TT+2 Tt +tt 4.Collect the F2 generation seeds and plant them the following spring to F2 plants obtain the F2 generation plants. 5. Analyze the traits found in each generation. Tall Tall Dwarf Tall

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Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.