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Q.

Robert Brown discovered nucleus in :

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a

Endoderm cells of Orchids - 1831

b

Epidermal cells of Orchids - 1831

c

Cortex cells of Orchids – 1832

d

Epithelial cells of Orchids - 1830

answer is B.

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Detailed Solution

In 1831, while investigating the fertilization mechanisms of plants in the Orchidaceae and Asclepiadaceae families, Robert Brown found the existence of a structure within the cells of orchids, as well as many other plants, that he called the “nucleus” of the cell.

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