S
C
O
D
SE
R
U
N
, S
C
O
D
SE
R
U
N
, S
C
O
D
SE
R
U
N
, b. Most single-celled organisms require a microscope to render them visible, but some
bacterial cells are large enough to be seen with naked eyes.
c. Microbes function as individual entities.
d. Many microbes form complex multicellular assemblages.
e. Viruses are not considered as microbial cells.
ANS: C DIF: Easy REF: 1.1 TOP: I.A.i | I.A.ii
MSC: Remembering
6. Which of the following statements is FALSE?
a. A genome is the total genetic information contained in an organism’s chromosomal DNA.
b. If a microbe’s genome includes genes for nitrogenase, that microbe probably can fix
nitrogen.
c. By comparing DNA sequences of different organisms, we can figure out how closely
related they are.
N
d. Fred Sanger developed the first applicable DNA sequencing method.
e. Fred Sanger completed the sequences of Haemophilus influenzae.
ANS: E DIF: Easy REF: 1.1 TOP: I.B
U
MSC: Remembering
7. The first cellular genomes to be sequenced were those of:
R
a. humans d. prions
b. bacteria e. fungi
c. viruses
SE
ANS: B DIF: Easy REF: 1.1 TOP: I.B.i
MSC: Remembering
8. The environment of early Earth may have contained all of the following EXCEPT:
a. ferrous iron d. oxygen
b. methane e. hydrogen gas
D
c. ammonia
ANS: D DIF: Easy REF: Special Topic 1.1
TOP: II.D MSC: Remembering
O
9. The development of the theory of the ―RNA world‖ resulted from the discovery of:
a. archaea d. ribozymes
C
b. prions e. endosymbionts
c. bacteria
ANS: D DIF: Medium REF: Special Topic 1.1
S
TOP: II.D MSC: Remembering
10. Which microbes may resemble those of the earliest life forms?
a. archaea d. cyanobacteria
b. photosynthetic algae e. protists
c. viruses
ANS: A DIF: Medium REF: Special Topic 1.1
TOP: II.D MSC: Remembering
11. Early metabolism may have been catalyzed by:
a. DNA d. amino acids
C
O
D
SE
R
U
N
, S
C
O
D
SE
R
U
N
, S
C
O
D
SE
R
U
N
, b. Most single-celled organisms require a microscope to render them visible, but some
bacterial cells are large enough to be seen with naked eyes.
c. Microbes function as individual entities.
d. Many microbes form complex multicellular assemblages.
e. Viruses are not considered as microbial cells.
ANS: C DIF: Easy REF: 1.1 TOP: I.A.i | I.A.ii
MSC: Remembering
6. Which of the following statements is FALSE?
a. A genome is the total genetic information contained in an organism’s chromosomal DNA.
b. If a microbe’s genome includes genes for nitrogenase, that microbe probably can fix
nitrogen.
c. By comparing DNA sequences of different organisms, we can figure out how closely
related they are.
N
d. Fred Sanger developed the first applicable DNA sequencing method.
e. Fred Sanger completed the sequences of Haemophilus influenzae.
ANS: E DIF: Easy REF: 1.1 TOP: I.B
U
MSC: Remembering
7. The first cellular genomes to be sequenced were those of:
R
a. humans d. prions
b. bacteria e. fungi
c. viruses
SE
ANS: B DIF: Easy REF: 1.1 TOP: I.B.i
MSC: Remembering
8. The environment of early Earth may have contained all of the following EXCEPT:
a. ferrous iron d. oxygen
b. methane e. hydrogen gas
D
c. ammonia
ANS: D DIF: Easy REF: Special Topic 1.1
TOP: II.D MSC: Remembering
O
9. The development of the theory of the ―RNA world‖ resulted from the discovery of:
a. archaea d. ribozymes
C
b. prions e. endosymbionts
c. bacteria
ANS: D DIF: Medium REF: Special Topic 1.1
S
TOP: II.D MSC: Remembering
10. Which microbes may resemble those of the earliest life forms?
a. archaea d. cyanobacteria
b. photosynthetic algae e. protists
c. viruses
ANS: A DIF: Medium REF: Special Topic 1.1
TOP: II.D MSC: Remembering
11. Early metabolism may have been catalyzed by:
a. DNA d. amino acids
