The location for RNA and DNA is found in the mitochondria and chloroplasts. Produces- make or manufacture from components or raw materials.
Hardness is the answer I believe
Answer,
Ribosomes
Explanation,
Ribosomes are cell organelles which help to produce proteins.It contains RNA and DNA strands which help in formation of new proteins.The synthesis of proteins takes place in two stages transcription and translation.Transcription takes the information encoded to the DNA and encodes it into mRNA which heads to the nucleus inthe cytoplasm.Translation mRNA works with a ribosome and tRNA to synthesize proteins.
The correct answer is (b) <span>They can be directly observed.</span>
It would be the first option. Adenine and thymine.