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GK QUESTION#3995

Which specific chemical can be applied to achieve staining of chromosomes?

  1. AEthanol
  2. BHydrochloric acid
  3. CAcetocarmineCorrect answer
  4. DMethanol
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Answer

C. Acetocarmine

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Explanation

Acetocarmine is used to stain chromatin and visualize chromosomes in cytological preparations, including onion root-tip squashes. Alcohols and hydrochloric acid can serve other preparation functions but are not the chromosome stain in this list.

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