Observe the given figure and answer the question.

Transcription can be coupled with translation in bacteria because :

There is no separation of cytosol and nucleus.

The correct answer is Option (1) - There is no separation of cytosol and nucleus.

In bacteria, transcription and translation can occur simultaneously because bacteria lack a distinct nucleus that separates the transcription of DNA from the translation of mRNA into proteins. In bacterial cells, both processes can occur in the cytosol, allowing for rapid and efficient gene expression.

In bacteria, since the mRNA does not require any processing to become active, and also since transcription and translation take place in the same compartment (there is no separation of cytosol and nucleus in bacteria), many times the translation can begin much before the mRNA is fully transcribed. Consequently, the transcription and translation can be coupled in bacteria.