Transcript Chapter 4

Chapter 10
The Structure and Function of DNA
Clicker Questions for use with Classroom Response Systems
Campbell Essential Biology, Fourth Edition
– Simon, Reece, and Dickey
Campbell Essential Biology with Physiology, Third Edition
– Simon, Reece, and Dickey
Questions prepared by Brad Williamson, updated by Mike Tveten
© 2010 Pearson Education, Inc.
Concept Check
While studying Mendelian genetics, you
learned the terms genotype and phenotype.
The figure diagrams the flow of genetic
information in a eukaryote. Which of the
following are the molecular-level
equivalents of genotype and phenotype?
Genotype
Phenotype
a. transcription
translation
b. DNA
RNA
c. DNA
protein
d. RNA
protein
© 2010 Pearson Education, Inc.
Concept Check
The genetic material at the molecular level has to account for three
important properties of inheritance. The genetic material must
•
be able to copy itself.
•
be able to direct the expression of an organism’s phenotype.
•
generate variation in some manner.
Which of the following processes accounts for these properties?
Phenotype
expression
Variation
a. transcription
translation
replication
b. replication
translation
mutation
c. replication
transcription
mutation
d. translation
mutation
replication
Copy
© 2010 Pearson Education, Inc.
Concept Check
An organism’s genetic
information is stored within the
sequence of ___________. This
information is transcribed into a
sequence of ____________,
which are then translated into a
sequence of ___________.
a. DNA bases, amino acids, RNA
bases
b. RNA bases, DNA bases, amino
acids
c. amino acids, DNA bases, RNA
bases
d. DNA bases, RNA bases, amino
acids
© 2010 Pearson Education, Inc.
Interpreting Data
West Nile virus (WNV) can infect
humans, birds, mosquitoes, and
horses. The virus probably arrived
in New York in 1999 or earlier.
This graph represents the spread
of the disease throughout the
United States. Which of the
following is a valid conclusion
based on this data?
a. WNV is a temporary United
States resident.
b. WNV is a permanent
United States resident.
c. There is not enough
information to predict how
long WNV will remain in the
United States.
© 2010 Pearson Education, Inc.
Interpreting Data
This graph plots the human cases
of WNV in New York state. Which
of the following hypotheses best
explain(s) the decline of human
cases in New York?
a. WNV is disappearing from the
United States.
b. WNV is evolving to a less
virulent form.
c. New Yorkers have adapted
their behavior to minimize
exposure to WNV.
d. Both b and c are correct.
© 2010 Pearson Education, Inc.
Interpreting Data
In northern climates, infections are
highest in the spring and fall. The
data point for 2004 represents the
cases only to Sept. 4, 2004, when
this graph was prepared. Which of
the following predictions appear(s)
most likely?
a. The total 2004 cases of
WNV will increase but the
downward trend will
continue.
b. It is probable that WNV
cases will stabilize.
c. It is not possible to make a
valid prediction on trends.
d. Both a and b are correct.
© 2010 Pearson Education, Inc.
Biology and Society
In the United States, biotech companies and government
agencies have applied for patents for their gene
discoveries. However, British courts have ruled that
naturally occurring genes cannot be patented.
Do you think that all gene discoveries should be
patented?
Strongly
Agree
A.
© 2010 Pearson Education, Inc.
B.
C.
D.
E.
Strongly
Disagree
Biology and Society
In the United States, biotech companies and government
agencies have applied for patents for their gene
discoveries. However, British courts have ruled that
naturally occurring genes cannot be patented.
Do you think that human gene discoveries should not
be patented?
Strongly
Agree
A.
© 2010 Pearson Education, Inc.
B.
C.
D.
E.
Strongly
Disagree
Biology and Society
The Centers for Disease Control (CDC) is our first line of
defense for identifying and dealing with emerging diseases
as well as bioterrorism. Disease outbreaks occur
throughout the world.
As a taxpayer, do you agree that funds allocated to the
CDC should be spent on responding to emerging
disease outbreaks anywhere in the world?
Strongly
Agree
A.
© 2010 Pearson Education, Inc.
B.
C.
D.
E.
Strongly
Disagree