Virions consist of a capsid, with no envelope, surrounding a core of ssRNA. Hydrated native particles are 30 nm in diameter, but vary from 22 to 30 nm in electron micrographs due to drying and flattening during preparation.
Author summary In human cells, DNA is packaged into chromatin, where it is wrapped around proteins called histones to form spool-like structures known as nucleosomes. This packaging helps organize the genome, but nucleosomes can make it…
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