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Experiments on Acetabularia by Hammerling proved the role of

1. cytoplasm in controlling differentiation
2. nucleus in heredity
3. chromosomes in heredity
4. nucleo-cytoplasmic ratio

Correct answer: nucleus in heredity

Solution

In Acetabularia, the nucleus controlled the inherited characteristics seen in regeneration, showing that genetic information came from the nucleus. The experiment demonstrated that the nucleus, not the cytoplasm, directed heredity-related features.

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