RNA STRUCTURE QUIZ

single strand nature

ribose

adenine

uracil

2'-O-methyl-guanosine

7-methyl-guanosine

1-methyl-guanosine

1-methyl-adenosine

adenine

guanine

cytosine

thymine

A restriction endonuclease from E. coli

Human insulin

Bacteriophage DNA ligase

Bacterial alpha-amylase

Transfer RNAs

All of these

Ribosomal RNAs

Messenger RNA

nRNA

mRNA

tRNA

rRNA

80 bp

120 bp

140 bp

100 bp

5'-Ap Tp Cp Gp-3'

5'-Ap Up Cp Gp-3'

5'-Gp Cp Up Ap-3'

5'-Gp Cp Tp Ap-3'

resembles the 3-dimensional structure of other tRNAs

All of these

involves extensive base stacking interactions

is maintained mostly by non-Watson-Crick base pairing

It is a direct copy of a gene

It is the genetic material of some organisms

It carries amino acids

It is a component of the ribosomes