Question

One consequence of the lack of introns in bacterial genes is that?

1) Exons are eliminated during transcription.
2) A 5' cap and poly (A) tail can be added immediately.
3) Bacterial proteins are very short and not subject to mutation.
4) Translation can begin before transcription is complete because prokaryotes do not have a nucleus.
5) Integrated viral DNA is not recognized for transcription.

Answer 1

In bacterial genes, translation can begin before transcription is entirely complete due to the absence of a nucleus, allowing these cellular processes to occur concurrently.

Step-by-step explanation:

One consequence of the lack of introns in bacterial genes is that translation can begin before transcription is complete because prokaryotes do not have a nucleus. Prokaryotic cells, which include bacteria, have their DNA contents free in the cytoplasm and are not bounded by a nuclear membrane. This allows for the processes of transcription and translation to occur simultaneously. The ribosomes can start to translate mRNA into a protein even while the mRNA strand is still being synthesized by RNA polymerase. This is in contrast to eukaryotic cells, where transcription occurs inside the nucleus and the mRNA must undergo processing such as splicing to remove introns and the addition of a 5' cap and poly-A tail, before being transported out of the nucleus for translation.