Gene expression control that occurred after the generation of rna is (blank)? a: controlled at transcriptionb: controlled before transcriptionc: controlled after transcriptiond: controlled after translation

After the generation of the RNA would indicate that 
C. It is controlled after transcription

Now it could also be translation (because that is after the protein is made) - but because your question asks specifically after the RNA is formed (that process is called transcription) that would indicate that your answer is C.

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.