Download DNA Unit Test Corrections

Name:__________________________ Hour:_____
DNA Unit Test Corrections
Part One: DNA Structure
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1. In the picture above, what is Arrow #1 pointing to?_________________________
2. In the picture above, what is Arrow #2 pointing to?_________________________
3. In the picture above, what is Arrow #3 pointing to?_________________________
4. Circle a nucleotide.
5. What is the shape of DNA?______________________________________________
6. What is it with the structure of DNA that allows it to store so much information?_______
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Part Two: DNA Replication
7. Where does DNA replication take place:__________________
8. When does DNA replication take place:__________________
9. What are the three things that are necessary for DNA replication to take place in a cell?
a. ____________________________
b._____________________________
c. ____________________________
10. Draw the process of DNA replication given the one DNA strand below. EXPLAIN each
step.
A G G T C T A _________________
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Part Three: RNA
11. What does RNA stand for?___________________________________________________
12. How is RNA different than DNA (name at least three differences)?
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13. What types of RNA did we talk about in class? What are their functions?
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Part Four: Protein Synthesis
14. What are the building blocks (monomers) of proteins called? ________________________
15. What holds these building blocks together?______________________________________
Draw two connected protein building blocks below. Label its parts.
Transcription
16. What is the purpose of transcription?___________________________________________
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17. Where does transcription take place?___________________________________________
18. What are the steps of transcription? Explain each step._____________________________
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Translation
19. What is the purpose of translation?____________________________________________
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20. Where does translation take place?____________________________________________
21. What is the role of tRNA during translation?______________________________________
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22. Describe the process of translation.____________________________________________
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23. Given the DNA strand below, make the other strand, mRNA, tRNA, and Amino Acid.
Gene Strand
T
A
C
G
T
C
A
T
T
Copy Strand
mRNA
tRNA
Amino Acid
24. What is a codon?___________________________________________________________
25. What is an anti-codon?______________________________________________________
26. If a protein has 10 codons, how many amino acids are there in the protein?_____________
27. How many amino acids are used by the human body to make proteins?________
28. Why is the shape of a protein important? _______________________________________
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29. Name the protein affected by the genetic disorder that you researched.________________
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30. What is the normal function of the protein you named in questions #29?________________
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31. What are some other functions of proteins in your body?____________________________
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32. What is it called when there is a change in the DNA sequence?_____________________
33. Do all mistakes lead to an incorrectly made protein? Explain.________________________
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