Mendel selected ___ characters and ___ true breading pea plant varieties to carryout hybridization experiment .

Mendel selected 7 characters ( plant height , flower colour , flower position , seed colour , seed shape , pod colour and pod shape )and 14 true breading varieties(tall and dwarf  w. r .t height , yellow ang green w.r.t to seed colour ,round and wrinkled w.r.t to  seed shape , green and yellow w.r.t to pod colour , inflated and constricted w . r .t pod shape , axillary and terminal w. r .t flower position, violet and white w. r .t to flower colour )