Download Chapter 12 Exam: DO NOT WRITE ON THIS EXAM. USE CAPITAL

Chapter 12 Exam: DO NOT WRITE ON THIS EXAM. USE CAPITAL LETTERS!!
1. Avery’s experiments showed that bacteria are transformed by
a. RNA
c. proteins
b. DNA
d. carbohydrates
2. What did Griffith observe when he injected a mixture of heat-killed, disease-causing bacteria and live
harmless bacteria into mice?
a. the disease- causing bacteria changed into harmless bacteria
b. the mice developed pneumonia
c. the harmless bacteria died
d. the mice were unaffected
3. Which of the following is a nucleotide found in DNA?
a. ribose + phosphate group + thymine
c. deoxyribose + phosphate group + uracil
b. ribose + phosphate group + uracil
d. deoxyribose + phosphate group + cytosine
4. In eukaryotes, DNA
a. is located in the nucleus
b. floats freely in the cytoplasm
c. is located in the ribosome
d. is circular
5. DNA is copied during a process called
a. Replication
c. transcription
b. Translation
d. transformation
6. DNA replication results in two DNA molecules,
a. each with two new strands
b. one with two new strands and the other with two original strands
c. each with one new strand and one original strand
d. each with two original strands
7. During DNA replication, a DNA strand that has the bases CTAGGT produces a strand with the bases
a. TCGAAC
c. AGCTTG
b. GATCCA
d. GAUCCA
8. RNA contains the sugar
a. Ribose
b. Deoxyribose
c. glucose
d. lactose
9. Unlike DNA, RNA contains
a. Adenine
c. phosphate groups
b. uracil
d. thymine
10. How many main types or RNA are there?
a. 1
c. hundreds
b. 3
d. thousands
11. Which type(s) of RNA is (are) involved in protein synthesis?
a. tRNA
c. rRNA and tRNA
b. mRNA
d. mRNA, rRNA, and tRNA
12. What is produced during transcription?
a. RNA molecules
c. RNA polymerase
b. DNA molecules
d. proteins
13. During transcription, an RNA molecule is formed
a. that is complementary to both strands of DNA
b. that is identical to part of a single strand of DNA
c. that is double-stranded
d. inside the nucleus
14. How many codons are needed to specify three amino acids?
a. 3
c. 9
b. 6
d. 12
15. Genes contain instructions for assembling
a. purines
c. proteins
b. nucleosomes
d. pyrimidines
16. What happens during the process of translation?
a. mRNA is made from DNA
b. the cell uses information from mRNA to produce proteins
c. tRNA is made from mRNA
d. copies of DNA molecules are made
17. Which type of RNA functions as a blueprint of the genetic code?
a. rRNA
c. mRNA
b. tRNA
d. RNA polymerase
18. A mutation that involves one or a few nucleotides is called a(an)
a. chromosomal mutation
c. point mutation
b. inversion
d. translocation
19. Which of the following is NOT a gene mutation?
a. Inversion
c. deletion
b. Insertion
d. substitution
20. Which of the following is NEVER a frameshift mutation?
a. Substitution
c. deletion
b. Insertion
d. point mutation
21. If a nucleic acid contains uracil it is _________________________. (DNA or RNA)
22. A codon consists of ____________________ nucleotides.
23. The anticodon AGA in tRNA is complementary to the mRNA codon ____________________.
24. What kind of mutation occurs when part of a chromosome is lost?
25. What kind of mutation occurs when extra copies of part of a chromosome is made?
Using the DNA template strand and the figure above. Answer questions 26-30
DNA template strand:
TAC AGT TTT CGG GGA
26. Complimentary mRNA strand:
_______
______
______
______
______
ACT
______
27. Amino Acids: ___________________________________________________________________________
28. What two mRNA codes correspond to Lysine?
29. How many different mRNA codes correspond to Leucine?
30. What would be the complimentary DNA strand for the above DNA template strand?
BONUS:
1. What does the “t” in tRNA stand for?
2. How many codons do not code to an amino acid?
3. Which RNA is located in the nucleus and moves to the cytoplasm of a cell.