Which of the following did Mendel select for his experiments?

Which of the following is not a dominant trait in edible pea?

The cause of variation is hidden in the process of $.....P.....$ - this knowledge was acquired by humans in $.....Q.....$.
$\quad \quad P \quad\quad\quad Q$

Test cross involves

What is a cross between two genotypes or phenotypes where the source of gametes is reversed in one cross called?

Alleles are forms of: