Question 1

Genes that specify the final identity of a body region are called .

Accepted Answer

A)  bicoid 
B)  homeobox genes 
C)  homeotic 
D)  lineage genes 
A)  bicoid 
B)  homeobox genes 
C)  homeotic 
D)  lineage genes C

Question 2

The consensus sequence of homeotic genes is called a .

Accepted Answer

A)  TATA box 
B)  Pribnow box 
C)  homeobox 
D)  parasegment 
A)  TATA box 
B)  Pribnow box 
C)  homeobox 
D)  parasegment C

Question 3

Which of the following genes must be expressed in Drosophila for development into a female fly?

Accepted Answer

A)  SRY 
B)  Hox 
C)  SXL 
D)  sex-1 
A)  SRY 
B)  Hox 
C)  SXL 
D)  sex-1 C

Question 4

In Drosophila embryos the anterior compartment of a segment overlaps with the posterior
compartment of a parasegment.

Accepted Answer

A) True 
 B)False

Question 5

A mutation in which the fate of cell lineages is not synchronized in an organism is called a .

Accepted Answer

A)  Heterochronic mutation 
B)  Apoptotic mutation 
C)  Homeotic mutation 
D)  Homeobox mutation 
A)  Heterochronic mutation 
B)  Apoptotic mutation 
C)  Homeotic mutation 
D)  Homeobox mutation

Question 6

The ABC model explains the process of .

Accepted Answer

A)  brain development 
B)  flower development 
C)  sex determination 
D)  muscle development 
A)  brain development 
B)  flower development 
C)  sex determination 
D)  muscle development

Question 7

Skeletal muscle cell development is controlled by proteins.

Accepted Answer

A)  homeobox 
B)  basic domain 
C)  Hox 
D)  myogenic bHLH 
A)  homeobox 
B)  basic domain 
C)  Hox 
D)  myogenic bHLH

Question 8

In humans, an XY individual in which a deletion has inactivated SRY would developmentally be what sex?

Accepted Answer

A)  Male 
B)  Female 
A)  Male 
B)  Female

Question 9

In humans, what gene determines maleness?

Accepted Answer

A)  DSX 
B)  sex-1 
C)  SRY 
D)  SXL 
A)  DSX 
B)  sex-1 
C)  SRY 
D)  SXL

Question 10

A homeotic mutation results in which of the following?

Accepted Answer

A)  Incorrect formation of the body axes 
B)  Replacement of segments with parasegments 
C)  Replacing of one body part with another 
D)  Apotosis 
A)  Incorrect formation of the body axes 
B)  Replacement of segments with parasegments 
C)  Replacing of one body part with another 
D)  Apotosis

Question 11

Programmed cell death is called .

Accepted Answer

A)  destruction initiation 
B)  apoptosis 
C)  myogenesis 
D)  morphogens 
A)  destruction initiation 
B)  apoptosis 
C)  myogenesis 
D)  morphogens

Question 12

The of a morphogen determines its effect on development.

Accepted Answer

A)  size 
B)  homeodomain 
C)  color 
D)  concentration 
A)  size 
B)  homeodomain 
C)  color 
D)  concentration

Question 13

Homeotic genes activate genes that determine the morphological characteristics of each segment.

Accepted Answer

A)  Segment 
B)  Parasegment 
C)  Realizator 
D)  Zygotic 
A)  Segment 
B)  Parasegment 
C)  Realizator 
D)  Zygotic

Question 14

Studies of invertebrate and vertebrate development suggest that there is a universal body plan for
animal development.

Accepted Answer

A) True 
 B)False

Question 15

The ectoderm, mesoderm, and endoderm are formed during the stage of embryogenesis.

Accepted Answer

A)  Fertilization 
B)  Cellular blastoderm 
C)  Syncytial blastoderm 
D)  Gastroderm 
E)  None of the answers are correct 
A)  Fertilization 
B)  Cellular blastoderm 
C)  Syncytial blastoderm 
D)  Gastroderm 
E)  None of the answers are correct

Question 16

Which of the following genes in humans prevents male development?

Accepted Answer

A)  SRY 
B)  DAX1 
C)  SOX9 
D)  SXL 
A)  SRY 
B)  DAX1 
C)  SOX9 
D)  SXL

Question 17

Gap genes and pair-rule genes are examples of genes that determine .

Accepted Answer

A)  Formation of body segments 
B)  The formation of the primary cell layers 
C)  The final identity of a body region 
D)  The formation of the major body axis 
A)  Formation of body segments 
B)  The formation of the primary cell layers 
C)  The final identity of a body region 
D)  The formation of the major body axis

Question 18

Antennapedia in Drosophila is an example of a .

Accepted Answer

A)  Loss of function mutation 
B)  Gain of function mutation 
C)  Zygotic mutation 
D)  Segmentation mutation 
A)  Loss of function mutation 
B)  Gain of function mutation 
C)  Zygotic mutation 
D)  Segmentation mutation

Question 19

The morphological features that a group of cells will eventually adopt is called the .

Accepted Answer

A)  positional information 
B)  cell fate 
C)  cell adhesion model 
D)  embryogenesis 
A)  positional information 
B)  cell fate 
C)  cell adhesion model 
D)  embryogenesis

Question 20

The spatial arrangement of different regions in the body is called a .

Accepted Answer

A)  pattern 
B)  morphogen 
C)  induction 
D)  segment 
A)  pattern 
B)  morphogen 
C)  induction 
D)  segment

Exam 23: Developmental Genetics

Genes that specify the final identity of a body region are called .

The consensus sequence of homeotic genes is called a .

Which of the following genes must be expressed in Drosophila for development into a female fly?

In Drosophila embryos the anterior compartment of a segment overlaps with the posterior compartment of a parasegment.

A mutation in which the fate of cell lineages is not synchronized in an organism is called a .

The ABC model explains the process of .

Skeletal muscle cell development is controlled by proteins.

In humans, an XY individual in which a deletion has inactivated SRY would developmentally be what sex?

In humans, what gene determines maleness?

A homeotic mutation results in which of the following?

Programmed cell death is called .

The of a morphogen determines its effect on development.

Homeotic genes activate genes that determine the morphological characteristics of each segment.

Studies of invertebrate and vertebrate development suggest that there is a universal body plan for animal development.

The ectoderm, mesoderm, and endoderm are formed during the stage of embryogenesis.

Which of the following genes in humans prevents male development?

Gap genes and pair-rule genes are examples of genes that determine .

Antennapedia in Drosophila is an example of a .

The morphological features that a group of cells will eventually adopt is called the .

The spatial arrangement of different regions in the body is called a .

Overview of Genetics

Mendelian Inheritance

Reproduction and Chromosome Transmission

Extensions of Mendelian Inheritance

Non-Mendelian Inheritance

Genetic Linkage and Mapping in Eukaryotes

Genetic Transfer and Mapping in Bacteria and

Variation in Chromosome Structure and Number

Molecular Structure of Dna and Rna

Chromosome Organization and Molecular Structure

Dna Replication

Gene Transcription and Rna Modification

Translation of Mrna

Gene Regulation in Bacteria and Bacteriophages

Gene Regulation in Eukaryotes

Gene Mutation and Dna Repair

Recombination and Transposition at the Molecular

Recombinant Dna Technology

Biotechnology

Genomics I: Analysis of Dna

Genomics II: Functional Genomics, Proteomics, and

Medical Genetics and Cancer

Population Genetics

Quantitative Genetics

Evolutionary Genetics

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