Download Handout: RNA Worksheet

RNA Worksheet
Structure of RNA:
1. The monomer of RNA is ________________.
2. Draw a picture of the monomer of RNA. In your picture label the following parts – ribose sugar, base, and phosphate group.
3. RNA stands for ______________________________.
4. The sugar in a nucleotide of RNA is ___________________.
5. In RNA the pyrimidine bases are ________________ and _______________.
6. In RNA the purine bases are __________________ and _________________.
7. In complimentary base pairing of RNA, _____ bonds with _____ and _____ bonds with _____.
8. RNA is a ____________-stranded polymer.
9. There are ___________ types of RNA each with its own function. They are called _____________, ______________,
and ______________.
Comparison of Nucleic Acids:
10. The five-carbon sugar in RNA is ___________________ whereas in DNA it is ______________________.
11. In RNA the base __________________ is substituted for ___________________.
12. DNA molecules are double stranded and RNA molecules are ________________
stranded.
13. In terms of length, DNA molecules are much _______________ than RNA molecules.
14. DNA is only found in the ___________________ of a cell.
Transcription:
15. Making a messenger RNA using DNA as a template is called ____________________.
16. In the cytoplasm, mRNA delivers the code to the_______________________.
17. Transcribe the mRNA strand from the DNA strand below. Use the correct complimentary base pairing. Only one side of
the DNA molecule is copied during transcription Remember that there is no thymine in RNA. You must substitute uracil.
A–T–C–G–T–A–T–A–A–T–C–G–G–C–C–G–G–C–C–G–A–T–T–A
18. Draw a detailed helical mRNA strand that would complement the DNA strand CCAAT.
19. In your picture above, circle an RNA nucleotide.
20. What is the mRNA strand that would be copied from this DNA strand?
G GC
T A T A T C C T G C G C T A T A C G C T A
21. If the following strand is an mRNA, what is the sequence of the DNA strand it copied itself from?
U U A GC G C G G G A U U A A G C U C G A A U A
22. What are the 5 steps of transcription?
23. What are the enzymes involved in transcription? (List and describe)
24. Transcription is occurring in the ________________.
25. In the process of transcription ___________ is used to make ___________.
26. What are the names of the 2 processes of protein synthesis (in order)?
Proteins:
27. DNA contains the instructions for making _________________.
28. Proteins are made up of monomers called _______________________________, which our bodies either make or come from
our food.
29. Why are proteins so important? (list as many reason as you can think of)
30. What are enzymes?
31. Three specific Nitrogenous bases that specify a single amino acid are a _____________.
32. Use the amino acid codon chart to identify the amino acids below:
a) AGU
b) CCC
c) GUA
d) CCA
33. a) Separate the RNA strand into codons. AUGGGGCUAAUACGUUAA
b) Then, identify the sequence of amino acids using the codon chart.
34. a) Transcribe the DNA strand into mRNA. TACCATGGTATACGG
b) Separate the mRNA strand into codons.
c) Identify amino acids of the codons above.
35. AGUUACGUAAUGC is a strand of RNA. What is the sequence of DNA nitrogenous bases that this piece of RNA was transcribed
from?