Practice question

Question

The following statements were made about the structure of the 30-nm chromatin fiber: A. In the solenoid model, the linker DNA connects the consecutive core particles. B. In the zig-zag model, alten1ating nucleosomes become interacting neighbors. C. In the solenoid model, 12 nucleosomes are organized into two separate stacks, whereas 8 nucleosomes per tum make a single stack in the zig-zag model. D. H1 histone is essentially required as per the zig-zag model, but not as per the solenoid model. E. Chromatin fibers prepared with H4 histones that lack their tails could fold into higher-order fibers. Which one of the following options represents the combination of all correct statements?