gamma ray. A stream of electromagnetic radiation having wavelengths shorter than those of x-rays and therefore greater energy and penetrating power.. A photon of electromagnetic radiation of very short wavelength, less than about 0.01 nanometer, and very high energy, greater than about 100,000 electron volts. Gamma rays are emitted in the decay of certain radioactive nuclei and in electron-positron annihilation. 2. A narrow beam of such photons.
The ribosomes makes proteins using coded instructions that come from the nucleus
What is the Ribosome covered organelle that modifies and sends out proteins? The ribosome covered organelle that modifies and sends out proteins  is the rough endoplasmic reticulum. The ribosome is a cellular  structure on which proteins are made. Thâ¦e rough endoplasmic  reticulum synthesizes and packages proteins.