Answer:
The right option for blanks is mRNA, amino acids and polypeptide chain (protein).
Reason:
During protein synthesis first of all mRNA formation occurs from DNA template. Then mRNA come out from nucleus into cytoplasm and bind with ribosome, where tRNA come and binds to mRNA codon with the help of anticodons. and add amino acids. In this way a chain of polypeptide is formed.
Lysosomes are found in the respiratory system, lies within most of the body as it produces saliva, human milk, tears, etc. But to be more specific, it lies within mostly the chest region near the lungs.
The pulmonary vein carries oxygenated blood from the lungs to the left atrium
