Mendel observed that, when peas with more than one trait were crossed, the progeny did not always match the parents. However, the heterozygote phenotype occasionally does appear to be intermediate between the two parents. Law of Dominance. When he cross-bred pea plants of round green seeds with wrinkled yellow seeds, he got F1 generation with all such seeds which were yellow and round. The F2 progeny consisted of some plants with round and … This indicated that round and yellow trait were the dominant traits. In 1865, Mendel presented the results of his experiments with nearly 30,000 pea plants to the local Natural History Society. This is because different traits are inherited independently – this is the principle of independent assortment. It states that when there are 2 different alleles in a cell, one will mask the effect of the other. He demonstrated that traits are transmitted faithfully from parents to offspring independently of other traits and in dominant and recessive patterns. How do Mendel’s experiments show that the (a) traits may be dominant or recessive, (b) traits are inherited independently. When the F1 plants were self pollinated , Mendel got the F2 generation. Mendel’s results, that traits are inherited as dominant and recessive pairs, contradicted the view at that time that offspring exhibited a blend of their parents’ traits. In Mendel's second set of experiments, he experimented with two characteristics at a time. Mendel performed an experiment in which he made crosses of pea plant with the round yellow seeds and one with the wrinkled green seeds. How do Mendel’s experiments show that the (a) traits may be dominant or recessive, (b) traits are inherited independently? In the first experiment, Mendel examined only one trait at a time. How does Mendel’s experiment show that traits are inherited independently? Fig Independent inheritance of two separate traits, shape and colour of seeds. This gave the information on how alleles of a gene pair express itself. This law states that the factors controlling different characteristics are inherited independently of each other. This is the first law. asked Oct 14, 2019 in Biology by Suchita ( … This is the dominant gene, while the gene whose effect is masked is known as the recessive gene.In the F1 generation of the monohybrid cross, the plants had Pp alleles, but were still purple in color. Mendel gave the law of independent assortment from the dihybrid cross. The results of this set of experiments led to Mendel's second law of inheritance called the law of independent assortment. When a cross was made between a pea plant with Round and yellow seeds and a pea plant with wrinkled and green seeds, the F1 progeny plants all had Round and Yellow seeds. 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