 <unk> are dynamic structures that are altered in response to changes in cellular metabolic activity . They are transcription dependent and in the absence of RNA <unk> II transcription , the <unk> disappears and all of its associated protein components ( <unk> , <unk> , <unk> , <unk> ( m ) 68 , and <unk> ) form a crescent shaped <unk> cap in the nucleolus . This phenomenon is demonstrated during the cell cycle . In the cell cycle , paraspeckles are present during interphase and during all of mitosis except for <unk> . During <unk> , when the two daughter nuclei are formed , there is no RNA <unk> II transcription so the protein components instead form a <unk> cap . 
