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
Both mitochondrion and chloroplast are semi autonomous organelles with DNA. Majority of proteins required for mitochondrion and chloroplast are coded by genes of the nucleus.Only some proteins are coded by the DNA of mitochondrion and chloroplast. That is why; these organelles are called as semi-autonomous organelles.oth mitochondrion and chloroplast are semi autonomous organelles with DNA. Majority of proteins required for mitochondrion and chloroplast are coded by genes of the nucleus.