Which of the following is not a stage of translation?
a. initiation
b. expression
c. elongation
d. termination

b. Expression  is the correct answer.

Explanation:

Translation is a process through which protein is produced from the messenger RNA.

Three stages of translation are

initiation: during this process, tRNA gets attach at the codon called start codon.elongation: during this process amino acids are added continuously, which result in the formation of long-chain joined together through a peptide bondtermination: In this translation gets stop when the stop codon enters the ribosome.

Air enters through the nose (and sometimes the mouth), moves through the nasal cavity, the  pharynx, the  larynx, enters the  trachea, moves through the  bronchi  andbronchioles  till the alveoli.