noun
- a cluster of ribosomes held together by a strand of messenger RNA during protein synthesis
Usage: biology
Examples
- The polysome allows multiple ribosomes to translate the same mRNA simultaneously.
- Researchers observed polysomes in the cytoplasm of actively dividing cells.
- Each polysome can produce several copies of the same protein at once.
- The formation of polysomes increases the efficiency of protein synthesis.
- Under the electron microscope, polysomes appear as clusters of dark spots.
- Free polysomes in the cytoplasm synthesize proteins for intracellular use.