Question 1

Drosophila developmental mutants of __________ genes produce larvae with mirror image segments.

Accepted Answer

A)  gap 
B)  pair-rule 
C)  segmentation 
D)  paternal effect 
E)  segment polarity 
A)  gap 
B)  pair-rule 
C)  segmentation 
D)  paternal effect 
E)  segment polarity

Question 2

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 2

Accepted Answer

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

Question 3

Describe how maternal effect genes and segmentation genes work together in the early embryonic stages of Drosophila.

Accepted Answer

Concepts to Consider: Maternal effect ge

Question 4

Human reproductive cloning produces a newborn human that is genetically identical to another adult human.
_________________

Accepted Answer

A) True 
 B)False

Question 5

Analysis of many Drosophila maternal effect genes reveals that many are involved in:

Accepted Answer

A)  female morphogenesis. 
B)  programmed cell death. 
C)  forming specific segments in the embryo. 
D)  nonspecific differentiation. 
E)  determining the polarity of the embryo. 
A)  female morphogenesis. 
B)  programmed cell death. 
C)  forming specific segments in the embryo. 
D)  nonspecific differentiation. 
E)  determining the polarity of the embryo.

Question 6

Cells become progressively organized into recognizable structures through a process known as:

Accepted Answer

A)  morphogenesis. 
B)  determination. 
C)  cell differentiation. 
D)  nonspecific differentiation. 
E)  growth. 
A)  morphogenesis. 
B)  determination. 
C)  cell differentiation. 
D)  nonspecific differentiation. 
E)  growth.

Question 7

One of the main obstacles to successful cloning of sheep apparently overcome by Wilmut et al.was:

Accepted Answer

A)  finding an adult nucleus that was likely to work. 
B)  synchronizing the cell cycles of the donor cell and the egg cell. 
C)  enucleating the donor cell. 
D)  the ability to culture cells in the laboratory. 
E)  recognizing that the nucleus from one sheep cell may contain different genetic information than the nucleus of another cell from the same animal. 
A)  finding an adult nucleus that was likely to work. 
B)  synchronizing the cell cycles of the donor cell and the egg cell. 
C)  enucleating the donor cell. 
D)  the ability to culture cells in the laboratory. 
E)  recognizing that the nucleus from one sheep cell may contain different genetic information than the nucleus of another cell from the same animal.

Question 8

A chimera is an organism containing two or more kinds of genetically similar cells from different zygotes.

Accepted Answer

A) True 
 B)False

Question 9

Maternal effect genes of Drosophila are genes active in __________ cells, whose products establish __________ in developing embryos.

Accepted Answer

A)  maternal; gender 
B)  maternal; polarity 
C)  embryonic; polarity 
D)  embryonic; gender 
E)  egg; gender 
A)  maternal; gender 
B)  maternal; polarity 
C)  embryonic; polarity 
D)  embryonic; gender 
E)  egg; gender

Question 10

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 1

Accepted Answer

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

Question 11

One way RNA interference molecules work is by selectively cleaving DNA molecules that have sequences complementary to small RNA molecules.
_________________

Accepted Answer

A) True 
 B)False

Question 12

The first cloned mammal, Dolly:

Accepted Answer

A)  was stillborn. 
B)  developed arthritis and a virus-induced lung cancer at a relatively young age. 
C)  lived a short period of time before suffering advanced aging effects. 
D)  lived to a normal age for sheep. 
E)  lived longer than normal sheep. 
A)  was stillborn. 
B)  developed arthritis and a virus-induced lung cancer at a relatively young age. 
C)  lived a short period of time before suffering advanced aging effects. 
D)  lived to a normal age for sheep. 
E)  lived longer than normal sheep.

Question 13

Figure 17-4
Use this figure to answer the corresponding question(s).  
-In Figure 17-1, the purpose of growing the donor cells in nutrient-limited media is:

Accepted Answer

A)  to have small cells that would be easier to manipulate. 
B)  to replicate a normal environment. 
C)  to force the donor cell nucleus into the G0 cell stage. 
D)  to induce favorable mutations. 
E)  to initiate apoptosis. 
A)  to have small cells that would be easier to manipulate. 
B)  to replicate a normal environment. 
C)  to force the donor cell nucleus into the G0 cell stage. 
D)  to induce favorable mutations. 
E)  to initiate apoptosis.

Question 14

Embryonic stem cells cannot develop into __________ cells.

Accepted Answer

A)  muscle 
B)  nerve 
C)  blood 
D)  placental 
E)  other stem 
A)  muscle 
B)  nerve 
C)  blood 
D)  placental 
E)  other stem

Question 15

Instances in which cells die shortly after they are produced in development is called:

Accepted Answer

A)  morphogenesis. 
B)  type C determination. 
C)  apoptosis. 
D)  non-specific differentiation. 
E)  caspases. 
A)  morphogenesis. 
B)  type C determination. 
C)  apoptosis. 
D)  non-specific differentiation. 
E)  caspases.

Question 16

Capases are __________ that are active in the first stages of __________.

Accepted Answer

A)  genes; polarity establishment 
B)  genes; cancer 
C)  transcription factors; cancer 
D)  hormones; apoptosis 
E)  proteolytic enzymes; apoptosis 
A)  genes; polarity establishment 
B)  genes; cancer 
C)  transcription factors; cancer 
D)  hormones; apoptosis 
E)  proteolytic enzymes; apoptosis

Question 17

__________ are organisms that contain two or more kinds of genetically dissimilar cells from different zygotes.

Accepted Answer

A)  Heterozygotes 
B)  Chimeras 
C)  Recombinants 
D)  Transgenics 
E)  Polyploids 
A)  Heterozygotes 
B)  Chimeras 
C)  Recombinants 
D)  Transgenics 
E)  Polyploids

Question 18

Homeobox or homeobox-like genes are responsible for very similar developmental controls seen in all of the following organisms except:

Accepted Answer

A)  Drosophila. 
B)  Arabidopsis. 
C)  C.elegans. 
D)  H.sapiens 
E)  E.coli 
A)  Drosophila. 
B)  Arabidopsis. 
C)  C.elegans. 
D)  H.sapiens 
E)  E.coli

Question 19

The significance of totipotency is that:

Accepted Answer

A)  genes are not regularly lost during development. 
B)  most organisms can be easily cloned. 
C)  differentiation leads to the loss of certain genes in each cell. 
D)  somatic cells are incapable of differentiation. 
E)  unexpressed genes are lost during development. 
A)  genes are not regularly lost during development. 
B)  most organisms can be easily cloned. 
C)  differentiation leads to the loss of certain genes in each cell. 
D)  somatic cells are incapable of differentiation. 
E)  unexpressed genes are lost during development.

Question 20

How does the early development of the mouse differ from that of Caenorhabditis?

Accepted Answer

A)  Embryonic mouse cells commit to their ultimate fate earlier than do the cells of Caenorhabditis. 
B)  Early development of a mouse is regulative, while early development of Caenorhabditis is not. 
C)  Mouse cells require higher concentrations of nutrients than do the cells of Caenorhabditis. 
D)  Embryonic mouse cells differentiate much later than the cells of Caenorhabditis. 
E)  Embryonic development in the mouse is controlled by transcription factors, while Caenorhabditis is not. 
A)  Embryonic mouse cells commit to their ultimate fate earlier than do the cells of Caenorhabditis. 
B)  Early development of a mouse is regulative, while early development of Caenorhabditis is not. 
C)  Mouse cells require higher concentrations of nutrients than do the cells of Caenorhabditis. 
D)  Embryonic mouse cells differentiate much later than the cells of Caenorhabditis. 
E)  Embryonic development in the mouse is controlled by transcription factors, while Caenorhabditis is not.

Exam 17: Developmental Genetics

Drosophila developmental mutants of __________ genes produce larvae with mirror image segments.

Describe how maternal effect genes and segmentation genes work together in the early embryonic stages of Drosophila.

Human reproductive cloning produces a newborn human that is genetically identical to another adult human. _________________

Analysis of many Drosophila maternal effect genes reveals that many are involved in:

Cells become progressively organized into recognizable structures through a process known as:

One of the main obstacles to successful cloning of sheep apparently overcome by Wilmut et al.was:

A chimera is an organism containing two or more kinds of genetically similar cells from different zygotes.

Maternal effect genes of Drosophila are genes active in __________ cells, whose products establish __________ in developing embryos.

One way RNA interference molecules work is by selectively cleaving DNA molecules that have sequences complementary to small RNA molecules. _________________

The first cloned mammal, Dolly:

Figure 17-4 Use this figure to answer the corresponding question(s). -In Figure 17-1, the purpose of growing the donor cells in nutrient-limited media is:

Embryonic stem cells cannot develop into __________ cells.

Instances in which cells die shortly after they are produced in development is called:

Capases are __________ that are active in the first stages of __________.

__________ are organisms that contain two or more kinds of genetically dissimilar cells from different zygotes.

Homeobox or homeobox-like genes are responsible for very similar developmental controls seen in all of the following organisms except:

The significance of totipotency is that:

How does the early development of the mouse differ from that of Caenorhabditis?

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

Filters

Maternal effect genes of Drosophila are genes active in cells, whose products establish in developing embryos.

Capases are that are active in the first stages of .