Which of the following terms represents a pair of contrasting characters?

Identify the recessive character of the pea plant studied by Mendel.

Which of the following traits of pea plants studied by Mendel was recessive?

In $Pisum$ $sativum$,two of the seven traits studied by Mendel were linked,as they are located on chromosome number $4$. These traits were:

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

The cross used to ascertain whether the plant is homozygous or heterozygous is: