Which of the following statements is incorrect?

Two pink coloured flowers on crossing resulted in 1 red, 2 pink and 1 white flower progeny. The nature of the cross will be:

A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants because:

According to the evolutionary theory, formation of a new species is generally due to:

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: