Give scientific reasons : Transcription and translation could be coupled in prokaryotic cell but not in eukaryotic cell.
In prokaryotes the $mRNA$ synthesised does not require any processing to become active and both transcription and translation occurs in the same cytosol but in eukaryotes, primary transcript contains both exon and intron and is subjected to a process called splicing where introns are removed and exons are joined in a definite order to form $mRNA.$
There is only one possible sequence of amino acids when deduced from a given nucleotides. But multiple nucleotides sequence can be deduced from a single amino acid sequence. Explain this phenomena.
Which of the following is not region of transcription unit?
It works as enzyme in bacteria.
Give an account of post transcriptional modifications of a eukaryotic $m-RNA$ .
Transcription is