Answer:
I hope you spend that much time, happily at peace.
I had to look for the options and here is my answer: When transcription of a protein-coding gene occurs in a bacterial RNA polymerase, what happens is that, it produces pre-mRNA. Pre-mRNA is also an RNA strand that is not yet matured and it is still to be synthesized.
Although in many regions of the brain—particularly those that give rise to nuclear cell groups—neurons migrate without the benefit of glial guides, migration along radial glial fibers is always seen in regions where cells are organized into layers, like the cerebral cortex, hippocampus, and cerebellum.
A)amino acid is the correct answer
