Retroviruses do not follow the central dogma. Comment.

(N/A) The genetic material of a retrovirus is $RNA$.
At the time of protein synthesis, the $RNA$ is first 'reverse transcribed' into its complementary $DNA$ using the enzyme reverse transcriptase.
This process is the reverse of the flow of information described in the central dogma $(DNA \rightarrow RNA \rightarrow \text{Protein})$.
Therefore, retroviruses are not considered to follow the central dogma.