$A$ : Mendel gave postulates like "principles of segregation and principles of independent assortment" after studying seven pairs of contrasting traits in garden pea.
$R$ : He was lucky in selecting seven characters in pea that were located on seven different chromosomes

Give differences : Dominance and Recessive

If a pea plant is represented by $Rr$, what type of information is obtained

When two individuals are similar in external appearance but differ in their genetic make up, they are called as

Describe one gene inheritance.