Moderate

Experiments on Acetabularia by Hammerling proved the role of:

Correct answer: B. Nucleus in heredity

  • A. Cytoplasm in controlling differentiation
  • B. Nucleus in heredity
  • C. Chromosomes in heredity
  • D. Nucleo­-cytoplasmic ratio.

Explanation

Factual Recall. 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

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About Cell Structure and Function

Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.

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