The core RNA polymerase is capable of catalyzing which steps of transcription ?

(1) Initiation only

(2) Elongation only

(3) Termination only

(4) All of these

The function of the rho protein is 

1. to help terminate translation

2. to help RNA polymerase bind to the DNA

3. to help RNA polymerase find a promoter

4. to help terminate transcription

Which of the following RNAs should be most abundant in animals cell ?

(1) rRNA

(2) tRNA

(3) mRNA

(4) miRNA

The equivalent of a structural gene is

(1) muton

(2) cistron

(3) operon

(4) recon

Which one of the following is the start codon?

(1) UGA

(2) UAA

(3) UAG

(4) AUG