Download Chapter 12 Quiz Review

Unit 5 Review Name_____________________________ Date________
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5. Why is DNA replication called a “semi-conservative” process?
6. What are the three components of a DNA nucleotide?
7. DNA contains C,G,A & T, while RNA has C,G,A & ___.
8. Which of the following pairings of bases agrees with the rules of base pairing?
a. A/T and C/G
c. C/C and U/U
b. U/T and U/G
d. G/T and C/A
9. The nitrogenous base pairs forming the “rungs” of the DNA structure are held together
by ___________ bonds.
10. What are two parts of Watson and Crick’s model for a DNA molecule?
11. Which types of RNA is(are) involved in protein synthesis?
12. Correct this sentence and write two reasons why it’s wrong:
During transcription, an RNA molecule is formed that is complementary to both strands of DNA.
13. How many codons are needed to specify 9 amino acids?
14. What is the tRNA sequence, or anticodon, for the
codon UAC?
15.
A._____________________
B._____________________
C._____________________
16. A gene that is transcribed into RNA is said to be ________.
17. True or False: Both eukaryotic and prokaryotic gene expression is regulated by DNA binding
proteins.
18. If an mRna molecule = AUG ACG UUU, what amino acids does it code for?
19. What is the original DNA sequence for the mRNA molecule in Question # 17?
20. Illustrate what the DNA (from Q. 18), mRNA and amino acid sequences would look like with a
substitution mutation.
21. Illustrate what the DNA (from Q. 18), mRNA and amino acid sequences would look like with a
substitution mutation.
22.
Type of RNA
Abbreviation
Function in Protein
Synthesis
23. Describe the three structural differences between DNA and RNA.
24. Draw a line matching each scientist, or group of scientists, with a conclusion that they are
historically known for
Frederick Griffith
Through X-ray diffraction, the structure of the
DNA molecule was revealed to be a double helix
Alfred Hershey & Martha Chase
The percentages of guanine [G] and cytosine [C] bases
are almost equal in any sample of DNA. The same is
true for adenine [A] and thymine [T]
Erwin Chargaff
When DNA and proteins of bacteriophages were
radioactively labeled, the bacteriophages injected only
DNA into the bacteria, not proteins.
Rosalind Franklin
A factor in heat-killed, disease-causing bacteria can
“transform” harmless bacteria into disease bacteria.
25. Using the parent strands below, fill in the daughter strand sequence and write out your
procedure in complete sentences.
A
C
T
G
T
G
A
C
26. What three steps lead up to traits and together are considered to be the “Central Dogma of
Molecular Biology?”