Download Chapter 11

Chapter 11
How Genes are Controlled
Active Lecture Questions for
Biology: Concepts & Connections, Sixth Edition
Campbell, Reece, Taylor, Simon, and Dickey
Copyright © 2009 Pearson Education, Inc.
Concept Check
Which of the following
cells would likely
express the genes
that code for
glycolysis enzymes?
1)
Muscle cell
2)
White blood cell
3)
Pancreas beta
cells
4)
All of these cells
5)
None of these
cells
Copyright © 2009 Pearson Education, Inc.
Answer
Which of the following
cells would likely
express the genes
that code for
glycolysis enzymes?
4)
All of these
cells
Copyright © 2009 Pearson Education, Inc.
Concept Check
Which of the following
cells would likely
express the genes that
code for the hormone
insulin?
1)
Muscle cell
2)
White blood cell
3)
Pancreas beta
cells
4)
All of these cells
5) None of these
cells
Copyright © 2009 Pearson Education, Inc.
Answer
Which of the following
cells would likely
express the genes that
code for the hormone
insulin?
3)
Pancreas beta
cells
Copyright © 2009 Pearson Education, Inc.
Concept Check
Which of the following
cells would likely
express the genes that
code for the hormone
gastrin?
1)
Muscle cell
2)
White blood cell
3)
Pancreas beta
cells
4)
All of these cells
5) None of these
cells
Copyright © 2009 Pearson Education, Inc.
Answer
Which of the following
cells would likely
express the genes that
code for the hormone
gastrin?
5)
None of these
cells
Copyright © 2009 Pearson Education, Inc.
Concept Check
Nuclear transplantation
experiments provide strong
evidence for which of the
following?
1)
Differentiated vertebrate
cells still maintain their
full complement of DNA.
2)
Differentiated vertebrate
cells do not maintain their
full complement of DNA.
3) Vertebrate cloning is not
feasible.
4)
Cell differentiation is a
irreversible process.
Copyright © 2009 Pearson Education, Inc.
Answer
Nuclear transplantation
experiments provide strong
evidence for which of the
following?
1)
Differentiated vertebrate
cells still maintain their
full complement of DNA.
Copyright © 2009 Pearson Education, Inc.
Concept Check
Which of the following
development events trigger
the definition of the head and
tail regions in a fruit fly?
1) Activation of the
homeotic genes in the
developing embryo.
2)
Accumulation of
“head” mRNA in one
end of the unfertilized
egg.
3)
Gravitational response
in the developing
embryo.
Copyright © 2009 Pearson Education, Inc.
Answer
Which of the following
development events trigger
the definition of the head and
tail regions in a fruit fly?
2)
Accumulation of “head”
mRNA in one end of the
unfertilized egg.
Copyright © 2009 Pearson Education, Inc.
Interpreting Data
If cancer results from a single gene mutation in a somatic cell,
which of the following graphs would describe the incidence rate of
cancer as a function of age? Hint: The probability of mutation
leading to cancer would be constant and independent of age.
1.
Copyright © 2009 Pearson Education, Inc.
2.
3.
Answer
If cancer results from a single gene mutation in a somatic cell,
which of the following graphs would describe the incidence rate of
cancer as a function of age? Hint: The probability of mutation
leading to cancer would be constant and independent of age.
1.
Copyright © 2009 Pearson Education, Inc.
2.
3.
Interpreting Data
If cancer results from several, accumulated gene mutations in a
single somatic cell, which of the following graphs would describe
the incidence rate of cancer as a function of age? Hint: The
probability of cancer would increase with additional mutations.
1.
Copyright © 2009 Pearson Education, Inc.
2.
3.
Answer
If cancer results from several, accumulated gene mutations in a
single somatic cell, which of the following graphs would describe
the incidence rate of cancer as a function of age? Hint: The
probability of cancer would increase with additional mutations.
1.
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2.
3.
Interpreting Data
Which graph best represents the natural occurrence of cancer
as a function of age?
1.
Copyright © 2009 Pearson Education, Inc.
2.
3.
Answer
Which graph best represents the natural occurrence of cancer
as a function of age?
1.
Copyright © 2009 Pearson Education, Inc.
2.
3.
Biology and Society
This insufficiently developed human embryo was produced by
inserting a nucleus from an adult cell into a human egg cell—a
potential clone. The purpose was to develop embryonic stem cells.
An embryonic stem cell can potentially develop into any of the
specialized cell tissues/organs of an adult.
Despite its promise, do you think that therapeutic cloning is
ethically justifiable?
Strongly
Disagree
Copyright © 2009 Pearson Education, Inc.
A
B
C
D
E
Strongly
Agree
Biology and Society
Embryonic stem cells are currently derived from extra human
blastocysts that sometimes result from in vitro fertilization
techniques. Currently in the U.S. stem cell research supported by
U.S. agencies is restricted to only a small number of stem cell lines.
Other countries are going ahead with embryonic stem cell research.
Do you support the current U.S. governmental policy on stem
cell research?
Strongly
Disagree
Copyright © 2009 Pearson Education, Inc.
A
B
C
D
E
Strongly
Agree
Biology and Society
Cigarette smoke and tobacco products are known carcinogens
linked to a number of the most common cancers that occur in
the U.S.
Do you support non-smoking regulations for public places
such as restaurants, bars, and public buildings?
Strongly
Disagree
Copyright © 2009 Pearson Education, Inc.
A
B
C
D
E
Strongly
Agree