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Bio 171 - Exam Questions With Verified And
Updated Answers
Which of the following types of organisms are composed of one or more cells?
a. plants
b. bacteria
c. yeast
d. All living organisms are composed of cells.
e. animals - answer✔D. All living organisms are composed of cells
Transcription is the process by which:
a. proteins are synthesized from RNA molecules.
b. RNA is synthesized from protein.
c. DNA is synthesized from protein.
d. RNA is synthesized from DNA.
e. proteins are synthesized from DNA molecules. - answer✔D. RNA is synthesized from DNA
Which one of the following is a correct base pairing in DNA?
A. Uracil and cytosine
B. Adenine and cytosine
C. Guanine and uracil
D. Adenine and uracil
E. Cytosine and thymine
F. Thymine and guanine
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G. Cytosine and guanine - answer✔G. Cytosin and Guanine
The type of RNA that physically interacts with a ribosome, providing the sequence information for a
specific protein, is abbreviated as:
a. tRNA.
b. mRNA.
c. rRNA. - answer✔B. mRNA
Proteins can be used for which one of the following cellular roles?
a. Biological catalysis
b. Cell signaling
c. Cell communication
d. All of these choices are correct.
e. Structural support - answer✔D. All of these choices are correct
True or false: A tentative explanation based on observation is referred to as a hypothesis. -
answer✔True
A single experiment or observation can ____________ a hypothesis.
a. reject
b. prove
c. reject or support
d. reject or prove
e. support - answer✔C. Reject or Support
Lisa is conducting a study to determine the genetic diversity of opossums in the state of Michigan. She
sampled DNA from 26 opossums that she found dead on roadsides (i.e. roadkill). She found 20
opossums in Lower Michigan and 6 in the Upper Peninsula. What is the sample size in Lisa's study?
a. 6
b. 26
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c. 20
d. 52 - answer✔B- 26
Lisa is conducting a study to determine the genetic diversity of opossums in the state of Michigan. She
sampled DNA from 26 opossums that she found dead on roadsides (i.e. roadkill). She sequences DNA
from several places throughout the opossum genome to see how different the genomes are between
individual opossums. What type of study is Lisa conducting?
a. Controlled experimental study
b. Computer simulation study
c. Observational study - answer✔A. Observational study
Which of the following is an example of a negative control?
a. In an experiment to test the effectiveness of a new painkiller, a subset of patients is given a sugar pill
(a placebo), rather than the actual painkiller.
b. In an experiment to test the effectiveness of a new painkiller, a subset of patients is given aspirin, a
proven painkiller
c. In an experiment to test the effectiveness of a new painkiller, a subset of patients is given the
experimental painkiller. - answer✔a. In an experiment to test the effectiveness of a new painkiller, a
subset of patients is given a sugar pill (a placebo), rather than the actual painkiller.
What were we measuring in the graph for discussion one? - answer✔The abundance of archaea verses
bacteria at various depth in the ocean.
Cells with a nucleus are called ____________; cells without a nucleus are called ____________.
a. eukaryotes; yeast
b. prokaryotes; eukaryotes
c. animals; plants
d. eukaryotes; prokaryotes
e. bacteria; animals - answer✔D. eukaryotes; prokaryotes
Translation is the process by which:
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ALL RIGHTS RESERVED.
Bio 171 - Exam Questions With Verified And
Updated Answers
Which of the following types of organisms are composed of one or more cells?
a. plants
b. bacteria
c. yeast
d. All living organisms are composed of cells.
e. animals - answer✔D. All living organisms are composed of cells
Transcription is the process by which:
a. proteins are synthesized from RNA molecules.
b. RNA is synthesized from protein.
c. DNA is synthesized from protein.
d. RNA is synthesized from DNA.
e. proteins are synthesized from DNA molecules. - answer✔D. RNA is synthesized from DNA
Which one of the following is a correct base pairing in DNA?
A. Uracil and cytosine
B. Adenine and cytosine
C. Guanine and uracil
D. Adenine and uracil
E. Cytosine and thymine
F. Thymine and guanine
1|Page
, ©THESTAR EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
G. Cytosine and guanine - answer✔G. Cytosin and Guanine
The type of RNA that physically interacts with a ribosome, providing the sequence information for a
specific protein, is abbreviated as:
a. tRNA.
b. mRNA.
c. rRNA. - answer✔B. mRNA
Proteins can be used for which one of the following cellular roles?
a. Biological catalysis
b. Cell signaling
c. Cell communication
d. All of these choices are correct.
e. Structural support - answer✔D. All of these choices are correct
True or false: A tentative explanation based on observation is referred to as a hypothesis. -
answer✔True
A single experiment or observation can ____________ a hypothesis.
a. reject
b. prove
c. reject or support
d. reject or prove
e. support - answer✔C. Reject or Support
Lisa is conducting a study to determine the genetic diversity of opossums in the state of Michigan. She
sampled DNA from 26 opossums that she found dead on roadsides (i.e. roadkill). She found 20
opossums in Lower Michigan and 6 in the Upper Peninsula. What is the sample size in Lisa's study?
a. 6
b. 26
2|Page
, ©THESTAR EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
c. 20
d. 52 - answer✔B- 26
Lisa is conducting a study to determine the genetic diversity of opossums in the state of Michigan. She
sampled DNA from 26 opossums that she found dead on roadsides (i.e. roadkill). She sequences DNA
from several places throughout the opossum genome to see how different the genomes are between
individual opossums. What type of study is Lisa conducting?
a. Controlled experimental study
b. Computer simulation study
c. Observational study - answer✔A. Observational study
Which of the following is an example of a negative control?
a. In an experiment to test the effectiveness of a new painkiller, a subset of patients is given a sugar pill
(a placebo), rather than the actual painkiller.
b. In an experiment to test the effectiveness of a new painkiller, a subset of patients is given aspirin, a
proven painkiller
c. In an experiment to test the effectiveness of a new painkiller, a subset of patients is given the
experimental painkiller. - answer✔a. In an experiment to test the effectiveness of a new painkiller, a
subset of patients is given a sugar pill (a placebo), rather than the actual painkiller.
What were we measuring in the graph for discussion one? - answer✔The abundance of archaea verses
bacteria at various depth in the ocean.
Cells with a nucleus are called ____________; cells without a nucleus are called ____________.
a. eukaryotes; yeast
b. prokaryotes; eukaryotes
c. animals; plants
d. eukaryotes; prokaryotes
e. bacteria; animals - answer✔D. eukaryotes; prokaryotes
Translation is the process by which:
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