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BIO 171 QUIZ – QUESTIONS AND CORRECT ANSWERS
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BIO 171 QUIZ – QUESTIONS AND CORRECTANSWERS
which of the following is/are an organism made up 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 in which:
a. proteins are made based on RNA templates
b. RNA is made based on a protein template.
c. DNA is made based on a protein template.
d. RNA is made based on a DNA template.
e. DNA molecules synthesize proteins. - ANSWER D. RNA synthesizes 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
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 called a
hypothesis. - ANSWER True
One 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
c. 20
d. 52 - ANSWER B- 26
Lisa is doing a project to estimate the genetic diversity of opossums within 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 in order 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:
A. a protein is made based on information in an RNA molecule.
B. a region of DNA serves as a template to make an RNA molecule.
C. information in DNA is used to make an identical copy of that DNA.
D. an RNA molecule is used to repair a damaged related DNA molecule.
E. ribosomes read the information in a DNA molecule and use it to synthesize
protein. - ANSWER A. a protein is synthesized from information in an RNA
molecule
True or False? The nitrogenous base thymine is present in DNA and RNA, and
uracil is present only in RNA. - ANSWER False. thymine is only present in
DNA
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