Correct Answer: C
Explanation:
Hammerling’s experiments with the single celled green algae, Acetabularia,showed that the nucleus of a cell contains the genetic information that directs cellular development.
Each Acetabularia cell is composed of 3 segments, the foot or base which contains the nucleus, stalk and the cap. In his experiments, he grafted the stalk of one species of Acetabularia onto the foot of another species.
In all cases, the cap that eventually developed on the grafted cell matched the species of the foot rather than that of stalk. This experiment shows that the base is responsible for the type of cap that grows and nucleus directs cellular development