What is the function of messenger RNA? It is a component of the ribosomes It carries amino acids It is the genetic material of some organisms It is a direct copy of a gene TRUE ANSWER : ? YOUR ANSWER : ?
A nicked RNA molecule can be ligated by DNA polymerase T4 DNA ligase all of these T4 RNA ligase TRUE ANSWER : ? YOUR ANSWER : ?
Two features of the tRNA molecule associated, in converting the triplet codon to an amino acid, are in the anticodon loop and the 3' CCA end None of these in the anticodon loop and D stem loop in the T Loop and D stem and loop TRUE ANSWER : ? YOUR ANSWER : ?
What modified base is at the 5' extremity of a capped eukaryotic m-RNA? 2'-O-methyl-guanosine 7-methyl-guanosine 1-methyl-guanosine 1-methyl-adenosine TRUE ANSWER : ? YOUR ANSWER : ?
Which of following RNA characteristically contains unusual purines and pyrimidmes? mRNA nRNA tRNA rRNA TRUE ANSWER : ? YOUR ANSWER : ?
What is the average size (in bp) of a mature t-RNA? 140 bp 80 bp 100 bp 120 bp TRUE ANSWER : ? YOUR ANSWER : ?
The mRNA from which of the following would contain a poly-A tail? Bacterial alpha-amylase Bacteriophage DNA ligase A restriction endonuclease from E. coli Human insulin TRUE ANSWER : ? YOUR ANSWER : ?
The tertiary structure of yeast tRNA All of these is maintained mostly by non-Watson-Crick base pairing involves extensive base stacking interactions resembles the 3-dimensional structure of other tRNAs TRUE ANSWER : ? YOUR ANSWER : ?
During RNA synthesis, the DNA template sequence 5'Tp Ap Gp Cp 3' Would be transcribed to produce which of the following RNA sequence? 5'-Gp Cp Up Ap-3' 5'-Ap Tp Cp Gp-3' 5'-Gp Cp Tp Ap-3' 5'-Ap Up Cp Gp-3' TRUE ANSWER : ? YOUR ANSWER : ?