Question

Which of the following statements is NOT valid for RNA biosynthesis? (select one) 

a. RNA synthesis is performed by nucleophilic attack of the 3 'hydroxyl group of the growing chain on the α-hosphate group of the newly introduced nucleotide 

b. RNA synthesis takes place in the 3 ' to 5' direction 

c. DNA synthesis requires a primer and RNA polymerase does not 

d. RNA polymerase includes uridine in the polynucleotide chain instead of thymidine 

e. promoters in RNA synthesis play a similar role as the onset of replication in DNA synthesis 

Answer 1

a. RNA synthesis is performed by nucleophilic attack of the 3 'hydroxyl group of the growing chain on the α-hosphate group of the newly introduced nucleotide