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NDA 1 2024 GAT, question 122

Topic: Biology

Q122

Bacterial DNA is referred to as naked because it is not associated with :

  1. (a) any scaffold
  2. (b) proteinsCorrect answer
  3. (c) ribozymes
  4. (d) plasmid

Solution.

Answer: (b) proteins

  1. In plants and animals, DNA is wound round histone proteins to form chromatin.
  2. Bacterial DNA has no histones, so it is called naked DNA.

Trap: Bacterial DNA does have some other binding proteins; "naked" means without histones, as school textbooks use it.