Question 1

Maternal effect genes form ____ gradients in the developing egg.

Accepted Answer

A)  maternal Hox protein 
B)  segment 
C)  polarity gene 
D)  morphogen 
E)  maternal growth factor 
A)  maternal Hox protein 
B)  segment 
C)  polarity gene 
D)  morphogen 
E)  maternal growth factor

Question 2

Ras is a tumor suppressor gene that is mutated in cases of familial breast cancer.

Accepted Answer

A) True 
 B)False

Question 3

Describe the relationship between proto-oncogenes and oncogenes.

Accepted Answer

Proto-oncogenes are normal gen

Question 4

____ 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 5

A(n) morphogen is a chemical agent that affects the differentiation of cells and the development of form.

Accepted Answer

A) True 
 B)False

Question 6

Match between columns
                        Premises: apoptosis
plant development
model of mammalian development
study of Hox genes

Accepted Answer

The Answer of C. elegans and M. musculus and Arabidopsis is...

Question 7

Scientists were able to produce induced pluripotent stem cells by introducing key hemeotic factors into mature mouse fibroblasts and human skin cells. 
_________________

Accepted Answer

A) True 
 B)False

Question 8

The first active Drosophila segmentation genes are the ____, which begin organization of the body into regions.

Accepted Answer

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

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

Discuss the importance of cancer driver genes such as oncogenes. How do oncogenes lead to cancer development?

Accepted Answer

When cancer driver genes are mutated, th

Question 11

Regulation of development takes place mostly at the level of:

Accepted Answer

A)  replication. 
B)  transcription. 
C)  posttranscription. 
D)  translation. 
E)  posttranslation. 
A)  replication. 
B)  transcription. 
C)  posttranscription. 
D)  translation. 
E)  posttranslation.

Question 12

Most segmentation genes code for:

Accepted Answer

A)  transcription factors. 
B)  genetic switches such as operators. 
C)  repressors. 
D)  insulin-like growth factors. 
E)  morphogens. 
A)  transcription factors. 
B)  genetic switches such as operators. 
C)  repressors. 
D)  insulin-like growth factors. 
E)  morphogens.

Question 13

Gap genes of Drosophila embryos:

Accepted Answer

A)  organize the embryo into broad regions and influence the activity of pair-rule genes. 
B)  are missing from the chromosomes of mutant flies. 
C)  are genes that have moved to gaps on other chromosome during meiosis. 
D)  cause gaps in the cell cycle. 
E)  cause the death of embryos before they hatch. 
A)  organize the embryo into broad regions and influence the activity of pair-rule genes. 
B)  are missing from the chromosomes of mutant flies. 
C)  are genes that have moved to gaps on other chromosome during meiosis. 
D)  cause gaps in the cell cycle. 
E)  cause the death of embryos before they hatch.

Question 14

Cells able to divide and form some types of cells in an organism are called:

Accepted Answer

A)  pluripotent stem cells. 
B)  terminally differentiated cells. 
C)  germ line cells. 
D)  morphogenic cells. 
E)  developmental cells. 
A)  pluripotent stem cells. 
B)  terminally differentiated cells. 
C)  germ line cells. 
D)  morphogenic cells. 
E)  developmental cells.

Question 15

Define apoptosis and explain its role in normal development.

Accepted Answer

Apoptosis is genetically progr

Question 16

Compare and contrast cell determination and cell differentiation.

Accepted Answer

Cell determination occurs when

Question 17

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 18

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

Accepted Answer

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

Question 19

The fact that most segmentation genes code for ____ indicates that these protein products are ____ that regulate the expression of other genes.

Accepted Answer

A)  homeobox genes; genetic switches 
B)  transcription factors; genetic switches 
C)  transcription factors; inducers 
D)  maternal effect genes; protein switches 
E)  hormones; signaling molecules 
A)  homeobox genes; genetic switches 
B)  transcription factors; genetic switches 
C)  transcription factors; inducers 
D)  maternal effect genes; protein switches 
E)  hormones; signaling molecules

Question 20

The Hox gene clusters in mouse are very similar to those identified in Drosophila .

Accepted Answer

A) True 
 B)False

Exam 17: Developmental Genetics

Maternal effect genes form ____ gradients in the developing egg.

Ras is a tumor suppressor gene that is mutated in cases of familial breast cancer.

Describe the relationship between proto-oncogenes and oncogenes.

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

A(n) morphogen is a chemical agent that affects the differentiation of cells and the development of form.

Scientists were able to produce induced pluripotent stem cells by introducing key hemeotic factors into mature mouse fibroblasts and human skin cells. _________________

The first active Drosophila segmentation genes are the ____, which begin organization of the body into regions.

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

Discuss the importance of cancer driver genes such as oncogenes. How do oncogenes lead to cancer development?

Regulation of development takes place mostly at the level of:

Most segmentation genes code for:

Gap genes of Drosophila embryos:

Cells able to divide and form some types of cells in an organism are called:

Define apoptosis and explain its role in normal development.

Compare and contrast cell determination and cell differentiation.

The role of maternal effect genes in Drosophila is to:

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

The fact that most segmentation genes code for ____ indicates that these protein products are ____ that regulate the expression of other genes.

The Hox gene clusters in mouse are very similar to those identified in Drosophila .

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.

The fact that most segmentation genes code for indicates that these protein products are that regulate the expression of other genes.