RNA STRUCTURE QUIZ

120 bp

100 bp

80 bp

140 bp

rRNA

nRNA

mRNA

tRNA

in the anticodon loop and D stem loop

in the anticodon loop and the 3' CCA end

in the T Loop and D stem and loop

None of these

It carries amino acids

It is a component of the ribosomes

It is a direct copy of a gene

It is the genetic material of some organisms

5'-Ap Tp Cp Gp-3'

5'-Ap Up Cp Gp-3'

5'-Gp Cp Tp Ap-3'

5'-Gp Cp Up Ap-3'

1-methyl-guanosine

2'-O-methyl-guanosine

1-methyl-adenosine

7-methyl-guanosine

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

A restriction endonuclease from E. coli

Human insulin

Bacteriophage DNA ligase

Bacterial alpha-amylase

rRNA.

tRNA.

mRNA.

aribosome.

T4 RNA ligase

T4 DNA ligase

all of these

DNA polymerase