Question 1

Totipotent human stem cells can apparently be obtained only from:

Accepted Answer

A)  bone marrow. 
B)  umbilical cords. 
C)  cancer patients. 
D)  zygotes. 
E)  gametes 
A)  bone marrow. 
B)  umbilical cords. 
C)  cancer patients. 
D)  zygotes. 
E)  gametes

Question 2

Figure 17-12
Use the figure to answer the corresponding question(s).  
-The mutation labeled 1 to the far right in Figure 17-2 is:

Accepted Answer

A)  legs developing where antenna should be. 
B)  appendages of the eyes. 
C)  enlarged antennae. 
D)  newly formed structures to remove pollen or dust from the eyes. 
E)  a revision of the fly body so that legs and antenna have switched places. 
A)  legs developing where antenna should be. 
B)  appendages of the eyes. 
C)  enlarged antennae. 
D)  newly formed structures to remove pollen or dust from the eyes. 
E)  a revision of the fly body so that legs and antenna have switched places.

Question 3

Figure 17-12
Use the figure to answer the corresponding question(s).  
-The mutant fly in Figure 17-2 illustrates all of the following except:

Accepted Answer

A)  the existence of homeotic genes in Drosophila. 
B)  the concept of nuclear equivalence. 
C)  mutations in genes affecting segment identity. 
D)  an altered phenotype due to a mutant allele. 
E)  a structure containing many nuclei residing in a common cytoplasm 
A)  the existence of homeotic genes in Drosophila. 
B)  the concept of nuclear equivalence. 
C)  mutations in genes affecting segment identity. 
D)  an altered phenotype due to a mutant allele. 
E)  a structure containing many nuclei residing in a common cytoplasm

Question 4

Malignant tumors are characterized by:

Accepted Answer

A)  metastasis. 
B)  abnormal cell growth. 
C)  forming cell masses 
D)  specific mutations. 
E)  proto-oncogenes 
A)  metastasis. 
B)  abnormal cell growth. 
C)  forming cell masses 
D)  specific mutations. 
E)  proto-oncogenes

Question 5

RNA interference is used to:

Accepted Answer

A)  interfere with specific transcription factors. 
B)  knock out the expression of a specific gene. 
C)  prevent the duplication of DNA. 
D)  cause a mutation in a specific gene. 
E)  stimulate apoptosis. 
A)  interfere with specific transcription factors. 
B)  knock out the expression of a specific gene. 
C)  prevent the duplication of DNA. 
D)  cause a mutation in a specific gene. 
E)  stimulate apoptosis.

Question 6

MATCHING
Sequence the steps that created the first cloned mammal and demonstrated that a differentiated mammalian cell has the genetic information to direct normal development.
a.in vitro culture of embryo
d.fuse mammary cell with enucleated egg cell
b.enucleate egg cell
e.live organism produced
c.transfer to host mother uterus
-Describe and discuss the results of two experiments, one using plants and the other using animals, that support the totipotency of some cells.Emphasize the differences between manipulation of plant and animal cells in your discussion.

Accepted Answer

Concepts to Consider: Totipote

Question 7

MATCHING
Sequence the steps that created the first cloned mammal and demonstrated that a differentiated mammalian cell has the genetic information to direct normal development.
a.in vitro culture of embryo
d.fuse mammary cell with enucleated egg cell
b.enucleate egg cell
e.live organism produced
c.transfer to host mother uterus
-step 4

Accepted Answer

The answer of MATCHING
Sequence the steps that created the first...

Question 8

Mutations in segmentation genes cause one body part to be substituded for another body part.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following statements concerning metastatic tumors is FALSE?

Accepted Answer

A)  They are examples of neoplasms. 
B)  They contain cancer cells. 
C)  They have escaped controls on cell division. 
D)  They are caused by the altered expression of genes. 
E)  They are localized in one part of the body. 
A)  They are examples of neoplasms. 
B)  They contain cancer cells. 
C)  They have escaped controls on cell division. 
D)  They are caused by the altered expression of genes. 
E)  They are localized in one part of the body.

Question 10

Define and clearly differentiate between the following terms: cell determination and cell differentiation.

Accepted Answer

Cell determination occurs when

Question 11

Maternal effect genes form gradients in the developing egg of chemicals called:

Accepted Answer

A)  maternal Hox proteins. 
B)  segmens. 
C)  differens. 
D)  morphogens. 
E)  maternal growth factors. 
A)  maternal Hox proteins. 
B)  segmens. 
C)  differens. 
D)  morphogens. 
E)  maternal growth factors.

Question 12

Undifferentiated cells that can divide and specialize to form a variety of different cells are called:

Accepted Answer

A)  differential cells. 
B)  mother cells. 
C)  determinate cells. 
D)  stem cells. 
E)  morphogens. 
A)  differential cells. 
B)  mother cells. 
C)  determinate cells. 
D)  stem cells. 
E)  morphogens.

Question 13

The role of maternal effect genes in Drosophila is to:

Accepted Answer

A)  code for the production of yolk proteins. 
B)  prepare the female fly for reproduction. 
C)  control the early stages of Drosophila development. 
D)  control the development of the pupa. 
E)  control the shape and size of the eggs produced. 
A)  code for the production of yolk proteins. 
B)  prepare the female fly for reproduction. 
C)  control the early stages of Drosophila development. 
D)  control the development of the pupa. 
E)  control the shape and size of the eggs produced.

Question 14

The results of the experiment outlined in the accompanying figure clearly demonstrate:

Accepted Answer

A)  gene amplification. 
B)  founder cell development pattern. 
C)  mosaic development. 
D)  apoptosis. 
E)  totipotency. 
A)  gene amplification. 
B)  founder cell development pattern. 
C)  mosaic development. 
D)  apoptosis. 
E)  totipotency.

Question 15

Imaginal discs are:

Accepted Answer

A)  found in mammalian cells and control gene activation in mature somatic cells. 
B)  paired groups of undifferentiated cells that are precursors of adult structures in Drosophila. 
C)  found in plant cells and assist in the development of the flower. 
D)  part of the salivary gland of Drosophila. 
E)  found in Drosophila ovary cells and represent inactivated X chromosomes. 
A)  found in mammalian cells and control gene activation in mature somatic cells. 
B)  paired groups of undifferentiated cells that are precursors of adult structures in Drosophila. 
C)  found in plant cells and assist in the development of the flower. 
D)  part of the salivary gland of Drosophila. 
E)  found in Drosophila ovary cells and represent inactivated X chromosomes.

Question 16

Totipotent nuclei are capable of:

Accepted Answer

A)  controlling the expression of other genes in the nucleus. 
B)  directing normal development of an organism. 
C)  causing cells to lose the ability to differentiate. 
D)  undergoing unlimited nuclear divisions. 
E)  stopping the cell cycle at will. 
A)  controlling the expression of other genes in the nucleus. 
B)  directing normal development of an organism. 
C)  causing cells to lose the ability to differentiate. 
D)  undergoing unlimited nuclear divisions. 
E)  stopping the cell cycle at will.

Question 17

Which of the following are not zygotic segmentation genes in Drosophila?

Accepted Answer

A)  homeotic genes 
B)  gap genes 
C)  pair-rule genes 
D)  segment polarity genes 
E)  embryonic segment genes 
A)  homeotic genes 
B)  gap genes 
C)  pair-rule genes 
D)  segment polarity genes 
E)  embryonic segment genes

Question 18

MATCHING
Sequence the steps that created the first cloned mammal and demonstrated that a differentiated mammalian cell has the genetic information to direct normal development.
a.in vitro culture of embryo
d.fuse mammary cell with enucleated egg cell
b.enucleate egg cell
e.live organism produced
c.transfer to host mother uterus
-step 5

Accepted Answer

The answer of MATCHING
Sequence the steps that created the first...

Question 19

Proto-oncogenes can be converted to oncogenes by:

Accepted Answer

A)  mutation. 
B)  tumor suppressor genes. 
C)  growth factors. 
D)  transcription factors. 
E)  infection by certain viruses. 
A)  mutation. 
B)  tumor suppressor genes. 
C)  growth factors. 
D)  transcription factors. 
E)  infection by certain viruses.

Exam 17: Developmental Genetics

Totipotent human stem cells can apparently be obtained only from:

Figure 17-12 Use the figure to answer the corresponding question(s). -The mutation labeled 1 to the far right in Figure 17-2 is:

Figure 17-12 Use the figure to answer the corresponding question(s). -The mutant fly in Figure 17-2 illustrates all of the following except:

Malignant tumors are characterized by:

RNA interference is used to:

Mutations in segmentation genes cause one body part to be substituded for another body part.

Which of the following statements concerning metastatic tumors is FALSE?

Define and clearly differentiate between the following terms: cell determination and cell differentiation.

Maternal effect genes form gradients in the developing egg of chemicals called:

Undifferentiated cells that can divide and specialize to form a variety of different cells are called:

The role of maternal effect genes in Drosophila is to:

The results of the experiment outlined in the accompanying figure clearly demonstrate:

Imaginal discs are:

Totipotent nuclei are capable of:

Which of the following are not zygotic segmentation genes in Drosophila?

Proto-oncogenes can be converted to oncogenes by:

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Dna: the Carrier of Genetic Information

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

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