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 nucleolus contains the instructions for creating ribosomes (rRNA).
The main components of the nucleus are the nucleolus, chromatin, and nuclear envelope. The nucleolus is involved in ribosome production, chromatin contains DNA and proteins, and the nuclear envelope separates the nucleus from the cytoplasm.
The semi-fluid medium within a cell's nucleus that contains chromatin is called nucleoplasm. This nucleoplasm surrounds the chromosomes within the nucleus and provides a medium for various cellular processes to occur.
nucleolus
The nucleus of the cell, of course.
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 nucleolus contains the instructions for creating ribosomes (rRNA).
Contained within a nucleus is DNA in the form of chromatin. In addition to this, the organelle known as a nucleolus is also found within the nucleus, and produces the building blocks of ribosomes.
The main components of the nucleus are the nucleolus, chromatin, and nuclear envelope. The nucleolus is involved in ribosome production, chromatin contains DNA and proteins, and the nuclear envelope separates the nucleus from the cytoplasm.
Largest organelle in the nucleus; contains DNA, RNA, and proteins.
The semi-fluid medium within a cell's nucleus that contains chromatin is called nucleoplasm. This nucleoplasm surrounds the chromosomes within the nucleus and provides a medium for various cellular processes to occur.
The nuclear envelope surrounds the nucleus and separates it from the cytoplasm. Chromatin is the material that makes up chromosomes, consisting of DNA and proteins. The nucleolus is a region inside the nucleus where ribosomes are produced.
nucleolus
The nucleus of the cell, of course.
The nucleus of the cell, of course.