There is an inbuilt tendency to variation during reproduction,both because of errors in $DNA$ copying,and as a result of sexual reproduction.

Give the pair of contrasting traits for the following characters in a pea plant and mention which is dominant and which is recessive:
$(i)$ Yellow seed
$(ii)$ Round seed

From the list given below,select the character which can be acquired but not inherited.

How are gametes formed in sexually reproducing organisms?

Some dinosaurs had feathers although they could not fly,but birds have feathers that help them to fly. In the context of evolution,this means that:

Name any five vegetables generated from a common ancestor through artificial selection rather than natural selection. Also,mention the features for which each vegetable is selected.