Radial loops:

When the chromosomes  are depleted  of histones  they  are seen  to have  a central fibrous 'protein  scaffold'  or nuclear  matrix  to which the DNA is attached  in loops. Thus, in vivo it seems such as in which the next order of packaging includes the attachment of the 30 nm fiber to multiple locations on this central protein scaffold in a series of radial loops. Little is called to how this structure is organized.

figure: Attachment of the 30nm fiber to a central protein scaffold with the loops arranged radially around the scaffold. The diagram on the right shows a representational cross-section through a chromosome.