Multiple choice

Where did Robert Brown discover the nucleus first time?

  1. In the cells of orchid root

  2. In the pollen grains

  3. In the white blood cells of humans

  4. In the red blood cells of humans
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A Correct answer
Explanation

Robert Brown discovered the nucleus in 1831 while studying orchid root cells. He observed a dark, dense structure in each cell and named it the nucleus. This was a key observation that contributed to understanding cell structure.

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