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Question: Answered & Verified by Expert
NHC structural proteins are
BiologyMolecular Basis of InheritanceNEET
Options:
  • A basic proteins rich in tryptophan and arginine
  • B regulatory proteins
  • C catalytic proteins rich in tryptophan and arginine
  • D required for packaging of chromatin at higher levels
Solution:
1775 Upvotes Verified Answer
The correct answer is: required for packaging of chromatin at higher levels
The packaging of chromatin at higher level requires additional set of proteins that collectively are referred as Non - histone chromosomal (NHC) proteins. Non - histone chromosomal proteins are of three types :

(i) Scaffold or structural NHC

(ii) Functional NHC protein e.g., DNA polymerase, RNA polymerase

(iii) Regulatory NHC protein e.g., HMG (High mobility group proteins that controls gene expression)

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