Mendel is famous for his work on

How many pairs of contrasting characters in pea plants were chosen by Mendel for his experiments?

What are the genes that are expressed only in the homozygous condition called?

Mendel crossed a pure white-flowered recessive pea plant with a dominant pure red-flowered plant. The first generation of hybrids from the cross should show

Which of the following is incorrect for garden pea?

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.