Nucleic Acid Unit
Name_______________________________
1. What is the name of the scientist who took this picture, AND what is the picture of?
a. Levene; proteins
b. Chargaff; the complementary nitrogenous bases
c. Avery; bacteria inserting its genetic code into a cell
d. Watson & Crick; the DNA molecule
e. Rosalind Franklin; the DNA molecule
2. This picture led scientists to make conclusions about the
a. double helix structure of DNA
b. DNA’s ability to be transferred to different organisms
c. the function of DNA in heredity
d. the size of the DNA molecule
C
A
Structure Matching, choose the correct letter for each
structure.
B
3. Nucleotidec
4. hydrogen bondd
D
5. Deoxyribose sugara
6. Phosphateb
E
7. nitrogenous basee
8. What are the main structural differences between DNA and RNA?
a. DNA contain deoxyribose sugar and thymine, whereas RNA contains ribose
sugar and uracil.
b. DNA contain ribose sugar and uracil, whereas RNA contains deoxyribose
sugar and thymine.
c. DNA contain deoxyribose sugar and uracil, whereas RNA contains deoxyribose
sugar and methionine.
d. DNA contain ribose sugar and thymine, whereas RNA contains deoxyribose
sugar and uracil.
e. RNA contains nucleotides and hydrogen bonds, and DNA does not.
9-11.
Label the following processes below.
a. transcription10
b. translation 11
c. replication9
9.
10.
11.
12. What is a gene?
a. a region of RNA that codes for a protein
b. a group of 5 codons
c. a region of DNA that codes for an amino acid
d. a region of DNA that codes for a protein
13. Which process does NOT take place in the nucleus?
a. transcription
d. a & b
b. translation
e. all of the above
c. replication
14. Transcribe the following DNA code
ATCAAGCAGGGTAC
a. TAGTTCGTCCCATG
b. UAGUUCGUCCCAUG
c. AUC-AAG-CAG-GGU-AC
d. stop-phenylalanine-valine-proline
15. tRNA stands for_______________, which makes sense due to its role involving
____________
a. taurine RNA; proteins
d. transfer RNA; amino acids
b. two stranded RNA; ribosomes
e. translational RNA; anti-codons
c. telophase RNA; cell division
Label the diagram below with the following choices
16. ribosome a
17. anti-codon c
18. codond
19. protein (polypeptide chain)
b
20. mRNAe
B
A
21. The previous diagram shows the process of
a. transcription
b. mitosis
c. translation
22. The END product of the above process is a
a. ribosome
c. tRNA
b. amino acid
d. mRNA
23. The following diagram shows the process of
a. transcription
b. mitosis
c. translation
d. replication
e. meiosis
e. protein
d. replication
e. meiosis
24. The END product of the above process is a
a. ribosome
c. tRNA
b. amino acid
d. mRNA
e. protein
25. What is the complimentary tRNA code for the following DNA code?
TAC
a.
b.
c.
d.
ATG
AUG
UAC
methionene
Short Answer.
26-30. Write the amino acid sequence for the following DNA strand. Show me the steps.
TAC
AAA GAC GTC AAC GAT ATT
mRNA: AUG UUU CUG CAG UUG CUA UAA
tRNA: UAC AAA GAC
GUC AAC GAU AUU
amino acid sequence (first 3 letters OK): Met (start)-Phe-Leu-Glu-Leu-Leu-Stop
Bonus:
1. Which of the following is the best statement (most inclusive and true) about
pyrimidines?
a. they are larger than purines and contain adenine, guanine, and uracil
b. they are larger than purines and contain cytosine, thymine, and uracil
c. they are smaller than purines and contain cytosine and thymine
d. they are smaller than purines and contain cytosine, thymine and uracil
e. they have 3 hydrogen bonds whereas purines only have 2
Choose the following correct choices.
a. helicase
b. DNA polymerase
c. RNA polymerase
d. exonuclease
e. reverse transcriptase
2. The enzyme responsible for building the new DNA strands during replicationb
3. Choose the enzyme responsible for building the mRNA moleculec
4. Choose the enzyme which “unzips” the DNA moleculea
5. Describe the discovery of the structure of the DNA molecule. Make sure you include
the role of Francis Crick, James Watson, Linus Pauling, and Rosalind Franklin.