Question 1

What would be the consequence of removing a founder cell early in the development of Caenorhabditis ?

Accepted Answer

A)  The organism would continue to develop normally. 
B)  The organism would develop normally but would be slightly smaller. 
C)  The organism would not develop at all. 
D)  The organism would be a hermaphrodite. 
E)  The structures that normally develop from that cell would be missing. 
A)  The organism would continue to develop normally. 
B)  The organism would develop normally but would be slightly smaller. 
C)  The organism would not develop at all. 
D)  The organism would be a hermaphrodite. 
E)  The structures that normally develop from that cell would be missing.

Question 2

The ABC genes in the model of Arabidopsis flower development are organ-identity genes that are also:

Accepted Answer

A)  segmentation genes 
B)  homeotic genes 
C)  gap genes 
D)  translation factors genes 
E)  growth factor genes 
A)  segmentation genes 
B)  homeotic genes 
C)  gap genes 
D)  translation factors genes 
E)  growth factor genes

Question 3

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 4

Homeotic genes code for transcription factors.

Accepted Answer

A) True 
 B)False

Question 5

Match between columns
                        Premises: Step 2

Accepted Answer

The Answer of live organism is produced and enucleate egg is...

Question 6

In early Drosophila development, which of the following forms first?

Accepted Answer

A)  segmented larva 
B)  pupa 
C)  syncytial blastoderm 
D)  blastocyst 
E)  cellular blastoderm 
A)  segmented larva 
B)  pupa 
C)  syncytial blastoderm 
D)  blastocyst 
E)  cellular blastoderm

Question 7

Match between columns
                        Premises: model of mammalian development

Accepted Answer

The Answer of D. melanogaster and M. musculus and Arabidopsis is...

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

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 10

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

What would be the consequence of removing a founder cell early in the development of Caenorhabditis ?

The ABC genes in the model of Arabidopsis flower development are organ-identity genes that are also:

The significance of totipotency is that:

Homeotic genes code for transcription factors.

In early Drosophila development, which of the following forms first?

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

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

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

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