Question 1

Identify each labelled part of the illustration.  
-development into adult

Accepted Answer

The answer of Identify each labelled part of the illustration....

Question 2

What is the key gene for head and thorax development?

Accepted Answer

A) the pair-rule gene, which is a paternal-effect gene 
B) the bicoid gene, which is a maternal-effect gene 
C) the bicoid gene, which is a paternal-effect gene 
D) the pair-rule gene, which is a maternal-effect gene 
A) the pair-rule gene, which is a paternal-effect gene 
B) the bicoid gene, which is a maternal-effect gene 
C) the bicoid gene, which is a paternal-effect gene 
D) the pair-rule gene, which is a maternal-effect gene

Question 3

Which of the following determine the development of male or female sex organs in the human embryo?

Accepted Answer

A) genes on the X chromosome 
B) genes on the Y chromosome 
C) environmental factors 
D) genes on the somatic chromosomes 
A) genes on the X chromosome 
B) genes on the Y chromosome 
C) environmental factors 
D) genes on the somatic chromosomes

Question 4

Chorionic villi eventually become the placenta.

Accepted Answer

A) True 
 B)False

Question 5

In terrestrial animals, such as birds, the embryo is exposed to a dry environment while in the egg.

Accepted Answer

A) True 
 B)False

Question 6

Identify each labelled part of the illustration.  
-embryo

Accepted Answer

The answer of Identify each labelled part of the illustration....

Question 7

Match each term to its definition.
-blastopore

Accepted Answer

A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity 
A) fluid-filled cavity within the blastomere 
B) stage in which an embryo has three tissue layers 
C) solid ball of blastomeres 
D) opening that eventually becomes the anus 
E) process that involves an increase in number of cells, but not an increase in mass
F)early stage in formation of the nervous system
G)second stage of cleavage; a formed hollow cavity

Question 8

Which of these structures is derived from the neural crest cells?

Accepted Answer

A) nail 
B) muscle 
C) hair 
D) teeth 
A) nail 
B) muscle 
C) hair 
D) teeth

Question 9

During differentiation, why do organs develop with different numbers of cells?

Accepted Answer

A) because the microtubules rearrange 
B) because the formation of myosin begins 
C) because the cells migrate 
D) because the length of interphase varies 
A) because the microtubules rearrange 
B) because the formation of myosin begins 
C) because the cells migrate 
D) because the length of interphase varies

Question 10

Put the following mechanisms of development in the order they occur.
-fourth mechanism

Accepted Answer

A) cell movements 
B) determination 
C) differentiation 
D) induction 
E) mitotic cell divisions
F)selective cell adhesions 
A) cell movements 
B) determination 
C) differentiation 
D) induction 
E) mitotic cell divisions
F)selective cell adhesions

Question 11

Match each term with its definition.
-induction

Accepted Answer

A) undifferentiated muscle cells 
B) pigmented layer of cytoplasm opposite from point of entry of sperm 
C) rounded layer of cells at the surface of yolk in birds 
D) solid rod of tissue that is involved in neurulation 
E) fingerlike extensions into the endometrium
F)clear fibrous protein
G)programmed cell death
H)event when a group of cells influences a nearby group of cells 
A) undifferentiated muscle cells 
B) pigmented layer of cytoplasm opposite from point of entry of sperm 
C) rounded layer of cells at the surface of yolk in birds 
D) solid rod of tissue that is involved in neurulation 
E) fingerlike extensions into the endometrium
F)clear fibrous protein
G)programmed cell death
H)event when a group of cells influences a nearby group of cells

Question 12

How can an inappropriate neural tube formation provide you with insight to congenital diseases that involve incomplete neural tube closure?

Accepted Answer

From the text, we learned that organogen

Question 13

Which body axis exists?

Accepted Answer

A) dorsal-anterior axis 
B) ventral-posterior axis 
C) anterior-posterior axis 
D) anterior-dorsal axis 
A) dorsal-anterior axis 
B) ventral-posterior axis 
C) anterior-posterior axis 
D) anterior-dorsal axis

Question 14

What is the result when a dorsal lip from one newt embryo is attached to the ventral side of another newt embryo?

Accepted Answer

A) survival of only one newt 
B) two separate newts 
C) death of one newt 
D) two attached newts 
A) survival of only one newt 
B) two separate newts 
C) death of one newt 
D) two attached newts

Question 15

Identify each labelled part of the illustration.  
-allantois

Accepted Answer

The answer of Identify each labelled part of the illustration....

Question 16

Identify each labelled part of the illustration.  
-amniotic cavity

Accepted Answer

The answer of Identify each labelled part of the illustration....

Question 17

Why could an ultrasound performed at week 4 of development be unable to determine the sex of a developing human fetus?

Accepted Answer

Because the male and female structures l

Question 18

Which sequence places the developmental structures in the correct order?

Accepted Answer

A) gastrula, blastula, morula 
B) organs, morula, gastrula 
C) morula, organs, gastrula 
D) morula, blastula, gastrula 
A) gastrula, blastula, morula 
B) organs, morula, gastrula 
C) morula, organs, gastrula 
D) morula, blastula, gastrula

Question 19

Which structure in the development of the amphibian is equivalent to the primitive knot in bird development?

Accepted Answer

A) the ectoderm 
B) the dorsal lip of the blastopore 
C) the archenteron 
D) the endoderm 
A) the ectoderm 
B) the dorsal lip of the blastopore 
C) the archenteron 
D) the endoderm

Question 20

Which term refers to an extra-embryonic membrane that secretes fluid around the developing embryo?

Accepted Answer

A) the shell 
B) the yolk sac 
C) the amnion 
D) the allantois 
A) the shell 
B) the yolk sac 
C) the amnion 
D) the allantois

Exam 42: Animal Development

Identify each labelled part of the illustration. -development into adult

What is the key gene for head and thorax development?

Which of the following determine the development of male or female sex organs in the human embryo?

Chorionic villi eventually become the placenta.

In terrestrial animals, such as birds, the embryo is exposed to a dry environment while in the egg.

Identify each labelled part of the illustration. -embryo

Match each term to its definition. -blastopore

Which of these structures is derived from the neural crest cells?

During differentiation, why do organs develop with different numbers of cells?

Put the following mechanisms of development in the order they occur. -fourth mechanism

Match each term with its definition. -induction

How can an inappropriate neural tube formation provide you with insight to congenital diseases that involve incomplete neural tube closure?

Which body axis exists?

What is the result when a dorsal lip from one newt embryo is attached to the ventral side of another newt embryo?

Identify each labelled part of the illustration. -allantois

Identify each labelled part of the illustration. -amniotic cavity

Why could an ultrasound performed at week 4 of development be unable to determine the sex of a developing human fetus?

Which sequence places the developmental structures in the correct order?

Which structure in the development of the amphibian is equivalent to the primitive knot in bird development?

Which term refers to an extra-embryonic membrane that secretes fluid around the developing embryo?

Light and Life

The Cell: an Overview

Defining Life and Its Origins

Energy and Enzymes

Cell Membranes and Signalling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Structure and Expression

Control of Gene Expression

Dna Technologies

Genomes and Proteomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Species and Macroevolution

Understanding the History of Life on Earth

Humans and Evolution

Bacteria and Archaea

Viruses, Viroids, and Prions: Infectious Biological Particles

Protists

Fungi

Plants

Diversity of Animals 1: Sponges, Radiata, Platyhelminthes, and Protostomes

Diversity of Animals 2: Deuterostomes: Vertebrates and Their Closest Relatives

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Conservation of Biodiversity

Putting Selection to Work

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Transport in Animals: the Circulatory System

Reproduction in Animals

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Integration

Muscles, Skeletons, and Body Movements

Animal Behaviour

Animal Nutrition

Gas Exchange: the Respiratory System

Regulating the Internal Environment

Defences Against Disease

Conservation and Evolutionary Physiology

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