Q. Read the following statements and choose the set of correct statements A. Euchromatin is loosely packed chromatin B. Heterochromatin is transcriptionally active C. Histone octomer is wrapped by negatively charged DNA in nucleosome D. Histones are rich in lysine and arginine E. A typical nucleosome contains 400 bp of DNA helix Choose the correct answer from the options given below.
A) A, C and E only
B) B, D and E only
C) A, C and D only
D) B and E only
Explanation
[Solution] Heterochromatin is densely packed and transcriptionally inactive, and a nucleosome contains about 200 bp of DNA; A, C and D are correct. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.