I think what you're asking for is the nucleolus, the darker area of the nucleus that contains the DNA used to code ribosomal RNA.
The dark circle in the nucleus is the nucleolus/nucleole (it's called both.)
It's comprised of densely packed chromatin, and is where rRNA is transcribed before exiting the nucleus.
nucleus
That is the nucleolus. It is found inside the nucleusInside the nucleus of a cell is the nucleolus, which makes the ribosomes. The ribosomes are then held in the rough endoplasmic reticulum, which moves materials throughout the cell.
nucleolus
Nucleolus
The nucleolus within the nucleus is where ribosomes are manufactured.
Organelles that produce proteins used within the cell are called ribosomes. Ribosomes produce proteins that are either used within the cell or are processed in the endoplasmic reticulum.
The assembly of ribosomes begins in a small dense structure called the nucleolus. The nucleolus is a non-membrane bound structure composed of proteins and nucleic acids found within the nucleus.
# Nucleolus.
cells
The nucleolus is found within the nucleus of a cell. It is a dense spherical structure which produces the components for ribosomes.
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 nucleolus within the nucleus is where ribosomes are manufactured.
The nucleolus is a structure within the nucleus of Eukaryotic cells that is involved in the production of ribosomes, can be more than one in a nucleus
Organelles that produce proteins used within the cell are called ribosomes. Ribosomes produce proteins that are either used within the cell or are processed in the endoplasmic reticulum.
The assembly of ribosomes begins in a small dense structure called the nucleolus. The nucleolus is a non-membrane bound structure composed of proteins and nucleic acids found within the nucleus.
A nucleus is found in a eukaryotic cell and is a membrane enclosed organelle. A nucleolus is found in the nucleus of a eukaryotic cell.
The ribosomes synthesize amino acids into proteins by following coded instructions from the nucleus. They are contained within the Rough Endoplasmic Reticulum.
Nucleolus
# Nucleolus.
The nucleolus (which is within the nucleus) is where the ribosomes are formed. The ribosomes themselves also are important because they create RNA and help with protein synthesis.
cells