Question

Which of the following routinely occurs in both eukaryotic and prokaryotic transcription?a. the RNA polymerase undergoes abortive 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

Answer 1

Answer:

a. the RNA polymerase undergoes abortive initiation prior to promoter clearance

Explanation:

In eukaryotes the 3' end of the mRNA is polyadenylated to protect the mRNA from degradation.

In eukaryotes, a modified guanine cap is added to the 5' end of the mRNAd to protects the transcript from being broken down.

Most bacterial RNA transcripts do not undergo splicing.

The nucleosome is the basic unit of chromatin repeat in eukaryotes.