mother and father. Combination of the genes results in an F 1 generation consisting
entire of “Aa” pairs, in which all organisms manifest the dominant trait A. In the
following F 2 generation, the gene pairs are AA:Aa:aa at a ratio of 1:2:1. At the same
time, Mendel found that the ratio of organisms with the dominant yellow cotyledons and the recessive green cotyledons was 3:1.
Fig. 2.1 Modes of transmission in the hybridization of pea plants with yellow and green
cotyledons
Fig. 2.2 Diagram for gene-based experimental findings in Fig. 2.1
2.1 What Are Genes?
25
entire of “Aa” pairs, in which all organisms manifest the dominant trait A. In the
following F 2 generation, the gene pairs are AA:Aa:aa at a ratio of 1:2:1. At the same
time, Mendel found that the ratio of organisms with the dominant yellow cotyledons and the recessive green cotyledons was 3:1.
Fig. 2.1 Modes of transmission in the hybridization of pea plants with yellow and green
cotyledons
Fig. 2.2 Diagram for gene-based experimental findings in Fig. 2.1
2.1 What Are Genes?
25