Although this may be easily (but incorrectly) defined as the 'nucleus', this is undeniably wrong for a simple reason: nuclei contain more than just chromatin and a nucleolus (or nucleoli for that matter). Custom-engineered 'organelles' (or more correctly vesicles) containing just nucleoli and chromatin may also be used (as molecular vehicles) in cellular transfection - these however would inadvertently fail in their function as a genomic-proteomic exchange center, due to the lack of the essential transcriptional/nuclear transport machinery characteristic of most (if not all) nuclei. Hence there is no such thing as a "spherical organelle which contains nucleolus and chromatin alone".
The Nucleus.
The nucleus, of course.
The nucleolus contains the instructions for creating ribosomes (rRNA).
nucleus :)
The nucleus of the cell, of course.
The nucleus of the cell, of course.
nucleolus
nuclear
nucleus
The nucleolus is a part of the cell that is inside the nucleus and contains chromatin. Chromatin is what chromosomes are made of.
The cell's nucleus.
The nucleus contains a nuclear membrane, chromatin, and the nucleolus.
The nucleolus contains the instructions for creating ribosomes (rRNA).
Largest organelle in the nucleus; contains DNA, RNA, and proteins.
nucleus :)
Mostly the choloroplasts which contains chlorophyll, but chromatin, another photosynthetic pigment is stored in the chromoplasts.
The nucleus of the cell, of course.
The nucleus of the cell, of course.
nucleolus