Experiments on Acetabularia by Hammerling proved the role of (a) cytoplasm in controlling differentiation (b) nucleus in heredity (c) chromosomes in heredity (d) nucleocytoplasmic ratio.
Option B Acetabularia used in Hammerling’s nucleocytoplasmic experiment is unicellular uninucleate green algae. Hammerling’s experiment on Acetabularia involved exchanging rhizoid and stalk. Presence of hereditary information in the nucleous was proved by the work of Hammerling on single celled alga Acetabularia.
