Which of the following routinely occurs in both eukaryotic and prokaryotic transcription?a. the RNA polymerase undergoes abortiv
e initiation prior to promoter clearanceb. the 3' end of the mRNA is polyadenylatedc. a modified guanine cap is added to the 5' end of the mRNAd. the resulting mRNAs are splicede. the nucleosomes are dismantled and reassembled as RNA polymerase moves along the DNA