In software development, constructs like IF-statements, GOTO-jumps, and WHILE loops are used to control the flow of code. But do similar constructs exist in DNA? According to some experts, there are biological examples that resemble programming statements. For example, a transcriptional activator can trigger gene transcription, similar to an IF statement. Transcriptional repressors, on the other hand, can halt gene transcription, behaving like a WHILE loop. But unlike in computer code, there are no true function calls in DNA, as events in biology occur in the same space and are subject to interference. While there are similarities, it’s important to remember that DNA and computer code are fundamentally different and cannot be directly compared. Ultimately, DNA is a set of instructions that need to be compiled to execute their functions.
https://biology.stackexchange.com/questions/30116/does-dna-have-the-equivalent-of-if-statements-while-loops-or-function-calls-h