What are organisms called that possess identical genetic factors for a specific trait?

Which is a dominant character of a pod of pea?

Out of the $7$ pairs of contrasting traits selected by Mendel,how many traits were related to the pea pod?

Punnett square is a representation to calculate

Which contributed to Mendel's success?
$I.$ Selection of pea plant
$II.$ Knowledge of history
$III.$ One character at one time
$IV.$ His statistical knowledge
Choose the correct option.

Mendel observed that all $F_1$ progeny plants: