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NEETBotanyCell - The Unit of Life

Read the following statements carefully: (A) Robert Brown discovered the nucleus in 1831. (B) Camillo Golgi first observed densely stained reticular structures near the nucleus. (C) George Palade first observed ribosomes as dense particles under the light microscope. (D) The material of the nucleus stained by acidic dyes was given the name chromatin by Flemming. How many of the above statements are correct?

Options

  1. AOne
  2. BThree
  3. CTwo
  4. DFour

Correct answer

C. Two

Step-by-step solution

Statement (A) is correct: Nucleus as a cell organelle was first described by Robert Brown as early as 1831. Statement (B) is correct: Camillo Golgi (1898) first observed densely stained reticular structures near the nucleus, which were later named Golgi bodies after him. Statement (C) is incorrect: George Palade (1953) first observed ribosomes as dense particles under the electron microscope, not the light microscope. Statement (D) is incorrect: The material of the nucleus stained by basic dyes (not acidic dyes) wa

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