RNA Worksheet
Name: ______________________________
Part A: Structure of RNA
1. The sugar in a nucleotide of RNA is __________.
2. The pyrimidine bases are _________________ and ____________________.
3. The purine bases are __________________ and _________________.
4. In complimentary base pairing, A bonds with ____ and ____ bonds with G.
5. RNA is a ______________-stranded polymer.
6. There are ____ types of RNA each with its only function.
Part B: Comparison of Nucleic Acids
7. The five-carbon sugar in RNA is __________ whereas in DNA it is ___________________.
8. In RNA the base _________________ is substituted for _____________.
DNA Strand
9. DNA molecules are double stranded and RNA molecules are
____________ stranded.
Strand 1
10. In terms of length, DNA molecules are much ______________ than RNA
A
molecules.
11. DNA is only found in the _____________ of a cell, while RNA can be
T
found ___________________.
T
Part C: Transcription
12. Making a messenger RNA using DNA as a template is called
__________________________.
13. In the cytoplasm, mRNA delivers the code to the
T
_______________________.
A
14. To the right, construct a messenger RNA molecule from a DNA strand.
C
Use the correct complimentary base pairing. Use colored pencils to show
G
the DNA and mRNA strands.
18. mRNA
 Only one side of the DNA molecule is copied during
transcription.
 Remember that there is no thymine in RNA.
Part D: Messenger RNA
15. mRNA stands for _____________________________.
16. mRNA has the code for making _____________________.
17. mRNA is produced in the ______________________.
18. Draw a colored & labeled diagram of an mRNA strand in the
23. tRNA
box to the right .
Part E: Transfer RNA
19. tRNA stands for _________________________________.
20. tRNA carry _______________________ from the cytoplasm.
21. One end of the tRNA is specific for a single type of
____________________.
22. The other end of the tRNA contains three unpaired bases
called the ___________________.
27. rRNA
23. Draw a colored & labeled diagram of the “cloverleaf” shape of
a tRNA in the box to the right .
Part F: Ribosomal RNA
24. rRNA stands for ____________________________________.
25. rRNA forms __________________ which are the sites of
________________________________________________.
26. rRNA is produced in the ___________________ of the cell.
27. Draw a colored & labeled diagram of a ribosome in the box to
the right .
mRNA
Strand
Strand 2
T
G
A
T
G
G