Question 1

In higher organisms,it is usually difficult to distinguish with genetic analysis small deletions in one gene from

Accepted Answer

A)  heterozygotes. 
B)  small duplications. 
C)  monosomies. 
D)  point mutations. 
E)  trisomies. 
A)  heterozygotes. 
B)  small duplications. 
C)  monosomies. 
D)  point mutations. 
E)  trisomies.

Question 2

What is the difference between tandem and nontandem duplications?

Accepted Answer

Tandem duplications are repeats of a reg

Question 3

You are mapping traits in your favorite organism but unbeknownst to you,your laboratory model organism contains a rare deletion.How will your mapping results be affected?

Accepted Answer

The mapping distance will appe

Question 4

Homozygosity for a deletion is often,but not always,lethal.

Accepted Answer

A) True 
 B)False

Question 5

What is a balancer chromosome?

Accepted Answer

A balancer chromosome is a special chrom

Question 6

When a crossover occurs within the inversion loop of a pericentric inversion,each recombinant chromatid will have

Accepted Answer

A)  two centromeres. 
B)  a duplication of one region. 
C)  translocation. 
D)  no centromeres. 
E)  exactly the same length as before the inversion. 
A)  two centromeres. 
B)  a duplication of one region. 
C)  translocation. 
D)  no centromeres. 
E)  exactly the same length as before the inversion.

Question 7

Explain the possible effects that a transposable element may have on a gene.

Accepted Answer

Insertion of a transposable element near

Question 8

Discuss how deletions and duplications may contribute to evolution.

Accepted Answer

General examples of how chromosomal rear

Question 9

Why do inversions act as crossover suppressors?

Accepted Answer

Inversions act as crossover su

Question 10

Which of the following is not considered a chromosomal rearrangement?

Accepted Answer

A)  inversion 
B)  duplication 
C)  deletion 
D)  translocation 
E)  replication 
A)  inversion 
B)  duplication 
C)  deletion 
D)  translocation 
E)  replication

Question 11

What is pseudolinkage?

Accepted Answer

It is characteristic of a heterozygote f

Question 12

Changes in chromosome number include aneuploidy,monoploidy,polyploidy,and duplications.

Accepted Answer

A) True 
 B)False

Question 13

What is the difference between the Ac and Ds elements identified by McClintock?

Accepted Answer

A)  Ac can move on its own or in the presence of Ds. 
B)  Ds can move on its own or in the presence of Ac. 
C)  Only the Ds element can disrupt genes. 
D)  Ac can move only in the presence of Ds. 
E)  Only the Ac element can disrupt genes. 
A)  Ac can move on its own or in the presence of Ds. 
B)  Ds can move on its own or in the presence of Ac. 
C)  Only the Ds element can disrupt genes. 
D)  Ac can move only in the presence of Ds. 
E)  Only the Ac element can disrupt genes.

Question 14

Deletion may arise from errors in replication,from faulty meiotic or mitotic recombination,and from exposure to X-rays.

Accepted Answer

A) True 
 B)False

Question 15

Triploid organisms usually result from

Accepted Answer

A)  the union of haploid and diploid gametes. 
B)  unequal disjunction during embryogenesis. 
C)  propagation of fused cell lines. 
D)  fusion of three gametes simultaneously. 
E)  duplication of a haploid genome. 
A)  the union of haploid and diploid gametes. 
B)  unequal disjunction during embryogenesis. 
C)  propagation of fused cell lines. 
D)  fusion of three gametes simultaneously. 
E)  duplication of a haploid genome.

Question 16

Down syndrome is an example of triploidy.

Accepted Answer

A) True 
 B)False

Question 17

The mouse genome has high synteny with the human genome since about 342 DNA blocks are simply rearranged between the two genomes.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following rarely,if ever,results in a positive force for evolution?

Accepted Answer

A)  polyploidy 
B)  allopolyploidy 
C)  trisomy 
D)  amphidiploidy 
E)  euploidy 
A)  polyploidy 
B)  allopolyploidy 
C)  trisomy 
D)  amphidiploidy 
E)  euploidy

Question 19

Karyotypes generally remain constant within a species because rearrangements and changes in chromosome number occur infrequently.

Accepted Answer

A) True 
 B)False

Question 20

Sometimes a piece of one chromosome attaches to another chromosome.This is known as a(n)

Accepted Answer

A)  inversion. 
B)  duplication. 
C)  deletion. 
D)  translocation. 
E)  replication. 
A)  inversion. 
B)  duplication. 
C)  deletion. 
D)  translocation. 
E)  replication.

Exam 8: Digital Analysis of Genomes

In higher organisms,it is usually difficult to distinguish with genetic analysis small deletions in one gene from

What is the difference between tandem and nontandem duplications?

You are mapping traits in your favorite organism but unbeknownst to you,your laboratory model organism contains a rare deletion.How will your mapping results be affected?

Homozygosity for a deletion is often,but not always,lethal.

What is a balancer chromosome?

When a crossover occurs within the inversion loop of a pericentric inversion,each recombinant chromatid will have

Explain the possible effects that a transposable element may have on a gene.

Discuss how deletions and duplications may contribute to evolution.

Why do inversions act as crossover suppressors?

Which of the following is not considered a chromosomal rearrangement?

What is pseudolinkage?

Changes in chromosome number include aneuploidy,monoploidy,polyploidy,and duplications.

What is the difference between the Ac and Ds elements identified by McClintock?

Deletion may arise from errors in replication,from faulty meiotic or mitotic recombination,and from exposure to X-rays.

Triploid organisms usually result from

Down syndrome is an example of triploidy.

The mouse genome has high synteny with the human genome since about 342 DNA blocks are simply rearranged between the two genomes.

Which of the following rarely,if ever,results in a positive force for evolution?

Karyotypes generally remain constant within a species because rearrangements and changes in chromosome number occur infrequently.

Sometimes a piece of one chromosome attaches to another chromosome.This is known as a(n)

Mendels Principles of Heredity

Extensions to Mendels Laws

The Chromosome Theory of Inheritance

Linkage, Recombination, and the Mapping of Genes on Chromosomes

Dna Structure, Replication, and Recombination

Anatomy and Function of a Gene: Dissection Through Mutation

Gene Expression: the Flow of Information From Dna to Rna to Protein

Genome Annotation

Analyzing Genomic Variation

The Eukaryotic Chromosome

Chromosomal Rearrangements and Changes in Chromosome Number

Bacterial Genetics

Organellar Inheritance

Gene Regulation in Prokaryotes

Gene Regulation in Eukaryotes

Manipulating the Genomes of Eukaryotes

The Genetic Analysis of Development

The Genetics of Cancer

Variation and Selection in Populations

Genetics of Complex Traits

Exploring Synthetic Biology: Concepts, Techniques, and Applications

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