Licence: Attribution 4.0 International (CC BY 4.0)
Credit: HeLa cells showing nuclei and nucleoli. Laura Trinkle-Mulcahy. Source: Wellcome Collection.

Licence: Attribution 4.0 International (CC BY 4.0)
Credit: HeLa cells showing nuclei and nucleoli. Laura Trinkle-Mulcahy. Source: Wellcome Collection.