Explanation

Mendel studied seven different pair of contrasting characters, on the basis of studies on garden pea $(Pisum\ sativum)$. Dominant and recessive characters are as follows: [table] Character | Dominant | Recessive ; The length of stem | Tall | Dwarf ; The position of flower | Axial | Terminal ; The colour of the pod | Green | Yellow ; The shape of the pod | Inflated | Constricted ; The shape of the seed | Round | Wrinkled ; The colour of the seed coat | Coloured | White ; The colour of the cotyledon | Yellow | Green [/table]