The cell nucleus, containing the genetic material (the DNA 'master tape'), is the best known of these so called 'organelles'.
(The cell nucleus; containing; the genetic material) (The cell nucleus, containing the genetic material (the DNA 'master tape'),; is known; of these so called 'organelles)
The cell nucleus The cell nucleus, containing the genetic material (the DNA 'master tape'),
containing is known
the genetic material
of these so called 'organelles