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Q.

Who discovered nucleus?

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a

Robert Brown in 1831.

b

Schleiden in 1931.

c

Altman in 1931

d

Robert Hooke in 1941.

answer is B.

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Detailed Solution

Concept: The nucleus is a membrane bound cell organelle that contains the genetic information of a cell. Nucleus is only found in eukaryotic cells. 

The nucleus consists of a nuclear envelope which encloses the genetic material which is present in the form of condensed chromatin fibers. The nucleus was first discovered by Robert Brown in 1831. The nucleus was discovered during his study of the process of fertilization of orchids. It was discovered that the nucleus is the storehouse of all the hereditary information. 

Hence the correct option is B.

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