Another feature of collapsed conformation of active polymer is a continuous correlation of local monomer unit densities along the chain (Figure ). In the contrast to swollen and re-swollen state, collapsed polymer exhibits undamped correlation, expressed in appearance of alternates local peaks of normalized <⍴ i ⍴ j > along the chain, which indicate presence of alternates loops, surrounding single dense region. Here, the chain as whole highly shrinked, however stretched segments form several loops on the surface of a globule. Thus, the initial homopolymer sequence becomes fragmented into two types of blocks -stretched blocks and collapsed ones. We established that activity can induce collapse of the long-enough polymer chain and observed separation within the collapsed state on dense and stretched loop regions. Now, let us dive into features of these separated regions. Cluster analysis was employed to distinguish two different types of fragments within a single polymer (see Methods). Figure shows distribution of normalized aggregation numbers N cl /N for the collapsed state. As one can see there are two pronounced peaks -one of cutted monomer units in stretched loops and other of single large clusters of condensed monomer units. Second maxima occurs at ~0.8 as most of the monomer units are part of this large cluster. In a collapsed polymer state there are large single clusters and stretched chain fragments. From now on, for the sake of certainty we will call continuous low density segments -stretched segments and chain parts within a condensed state -collapsed segments. Typical conformation of collapsed chain with monomer units colored depending on belonging to one or other type shown in Figure .