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#Question id: 19464


Which is the common fixative agent that crosslinks amino groups on adjacent molecules

#13. Methods in Biology
  1. Eosin 
  2. Formaldehyde
  3. Hematoxylin
  4. Iodine

Answer:- Option(s): 2


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#Question id: 754

#1. Molecules and their Interaction Relevant to Biology

If the twisting of the DNA is in the same direction as that of the double helix, that is the helix is twisted up before closure, this form of super coiling is known as;

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