instruction:
Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.
question:
Fact: molecules of deoxyribonucleic acid are encoded with instructions that tell cells what to do. 
Question: What molecules are are encoded with instructions that tell cells what to do?
answer:
deoxyribonucleic acid.


question:
Fact: Plants are essential for cellular respiration for all aerobic organisms. 
Question: What is essential for cellular respiration for all aerobic organisms.?
answer:
Plants.


question:
Fact: HIV infects and destroys part of the immune response. 
Question: What can HIV infect and destroy part of?
answer:

the immune response.