Which of the following is a dominant trait of the garden pea plant?

How many pairs of contrasting traits were selected by Mendel for his study on garden peas?

How can the results obtained in a Punnett square be expressed mathematically?

$A$ true-breeding plant is one that is ......

In a cross between a red flower and a white flower,the offspring have red flowers in the majority,while white flowers are much less frequent. In this cross,the red colour character is:

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$: In an experiment, Mendel observed that the $F1$ progeny plants are all tall and none are dwarf.
Reason $R$: Stem height is a contrasting trait, with tall being dominant and dwarf being recessive.
In the light of the above statements, choose the most appropriate answer from the options given below: