Nucleus was discovered by:
Correct answer: C. Robert Brown
- A. Waldyne
- B. T.H. Margan
- C. Robert Brown
- D. Kohler
Explanation
The correct answer is Robert Brown, who discovered the cell nucleus in 1831 while examining plant cells under a microscope. His observations laid foundational work for cell biology. Other options like Waldyne and Kohler are not associated with this discovery, and T.H. Margan is a misspelling of T.H. Morgan, who was unrelated to the discovery of the nucleus.
This question appeared on the ETEA MDCAT 2013 paper, which you can sit online with every answer explained.
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Animal and plant cells share a plasma membrane, cytoplasm, nucleus, ribosomes, mitochondria and endoplasmic reticulum, but plant cells also have a cellulose cell wall, chloroplasts and a large permanent vacuole. Questions cover organelle structure and function, differences between the two cell types, and how membranes control movement of substances.
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