Oat coleoptiles were used in the experiment set ups shown below. Study the set-ups and answer the following questions.
(a) What type of response was being investigated above? (1mk)
(b) Which of the set up above would act as a control experiment? (1mk)
(c) Explain what happened in set up B after 24 hours (2mks)
The side brushed with IAA increased concentration of this hormone (IA; This lead to increased cell elongation/growth hence a growth harvature away from the brushed side;