1. energy
2.thermal equilibrium
3.heat
4.thermal energy
5.thermal expansion
6.temperature
This seems rather vague, the question is most likely referring to parasitic relationships.<span />
The answer is the third one, mitochondrial DNA can be traced for generations. this is because geneticists could trace back mitochondrial adam and mitochondrial eve.
Part A: DNA has A paired with T for RNA has U paired with T and DNA stays in the nucleus while RNA goes to get translated into amino acids (proteins).
Part B: AUG-GCG-AAC-UGU
Part C: The newly synthesized protein as a result will have a different structure and function