Which of the Following Statements Are True Only for Eukaryotic

Multiple Choice

Which of the following statements are true only for eukaryotic transcription and processing of mRNA but not for prokaryotic? (1) transcription is regulated by the binding of proteins to specific DNA sequences upstream of the gene.
(2) The RNA is terminated at the 5' end with a cap, consisting of 7-methylguanosine connected by a triphosphate bridge.
(3) RNA polymerase locally melts the DNA strand and copies only the template strand.
(4) Non_coding regions of the RNA transcript are spliced out.
(5) The 3'_terminus of the RNA consists of a long string of A residues (poly A) which are added posttranscriptionally.

A) only 2, 3 and 4 are true
B) only 3,4 and 5 are true
C) only 1, 2 and 3 are true
D) only 2, 4 and 5 are true
E) only 1, 4 and 5 are true