Question 1

A number of interacting genes produce quantitative inheritance.The transmission of these genes can be seen in the phenotypical pattern of

Accepted Answer

A) discontinuous distribution of discrete phenotypes. 
B) continuous variation in phenotypic expression. 
C) strict dominance and recessiveness. 
D) All of the choices are correct. 
E) only discontinuous distribution of discrete phenotypes and continuous variation in phenotypic expression. 
A) discontinuous distribution of discrete phenotypes. 
B) continuous variation in phenotypic expression. 
C) strict dominance and recessiveness. 
D) All of the choices are correct. 
E) only discontinuous distribution of discrete phenotypes and continuous variation in phenotypic expression. B

Question 2

The response to selection, R, is equal to

Accepted Answer

A) the heritability (h2) of a trait. 
B) the strength (S) of selection. 
C) the difference between h2 and S. 
D) S/h2. 
E) h2S. 
A) the heritability (h2) of a trait. 
B) the strength (S) of selection. 
C) the difference between h2 and S. 
D) S/h2. 
E) h2S. E

Question 3

The total phenotype variance (VP) is

Accepted Answer

A) the sum of genetic variance (VG) and environmental variance (V
E) . 
B) the difference between VG and VE. 
C) not dependent on VG. 
D) not dependent on VE. 
E) always constant. 
A) the sum of genetic variance (VG) and environmental variance (V
E) . 
B) the difference between VG and VE. 
C) not dependent on VG. 
D) not dependent on VE. 
E) always constant. A

Question 4

By definition linkage disequilibrium means that

Accepted Answer

A) two alleleic variants correlate with the presence of a particular phenotype. 
B) two alleleic variants do not correlate with the presence of a particular phenotype. 
C) that two alleleic variants are at least 60 mu apart. 
D) two alleleic variants are 50 mu apart 
A) two alleleic variants correlate with the presence of a particular phenotype. 
B) two alleleic variants do not correlate with the presence of a particular phenotype. 
C) that two alleleic variants are at least 60 mu apart. 
D) two alleleic variants are 50 mu apart

Question 5

Multifactorial inheritance is observed in phenotypes that show typically

Accepted Answer

A) only one discrete type. 
B) two extremes. 
C) a bell-shaped distribution. 
D) a higher mutation rate. 
E) All of the choices are correct. 
A) only one discrete type. 
B) two extremes. 
C) a bell-shaped distribution. 
D) a higher mutation rate. 
E) All of the choices are correct.

Question 6

The total genetic relatedness of two siblings is

Accepted Answer

A) 2.0 
B) 1.0 
C) 0.5 
D) 0.2 
E) None of the choices is correct. 
A) 2.0 
B) 1.0 
C) 0.5 
D) 0.2 
E) None of the choices is correct.

Question 7

Introgressions are used to

Accepted Answer

A) fine map QTLs 
B) establish linkage disequilibrium. 
C) establish linkage equilibrium. 
D) rough map QTLs. 
A) fine map QTLs 
B) establish linkage disequilibrium. 
C) establish linkage equilibrium. 
D) rough map QTLs.

Question 8

In an experiment to distinguish genetic versus environmental effects on a phenotype it is important to make sure that the test individuals

Accepted Answer

A) are as genetically identical as possible 
B) have the greatest varinace at all losi as possilble 
C) have the same parents 
D) are subjected to a natural environment. 
A) are as genetically identical as possible 
B) have the greatest varinace at all losi as possilble 
C) have the same parents 
D) are subjected to a natural environment.

Question 9

Which of the following is not true about monozygotic twins?

Accepted Answer

A) They share all alleles at all loci. 
B) They have a genetic relatedness of 0.5. 
C) They have a genetic relatedness of 1.0. 
D) They come from the joining of a single egg with a single sperm cell. 
E) They are the result of a split of the zygote after fertilization. 
A) They share all alleles at all loci. 
B) They have a genetic relatedness of 0.5. 
C) They have a genetic relatedness of 1.0. 
D) They come from the joining of a single egg with a single sperm cell. 
E) They are the result of a split of the zygote after fertilization.

Question 10

Multifactorial traits

Accepted Answer

A) are affected by both genetic and environmental factors. 
B) usually do not result in continuous phenotypes. 
C) are not usually affected by environmental conditions. 
D) usually result in one or two phenotypic values such as red/white eye color in Drosophila. 
A) are affected by both genetic and environmental factors. 
B) usually do not result in continuous phenotypes. 
C) are not usually affected by environmental conditions. 
D) usually result in one or two phenotypic values such as red/white eye color in Drosophila.

Question 11

Broad sense heritability is defined as

Accepted Answer

A) VG. 
B) VP. 
C) VE. 
D) VG/VP. 
E) VP/VG. 
A) VG. 
B) VP. 
C) VE. 
D) VG/VP. 
E) VP/VG.

Question 12

Twins from two individual zygotes (dizygotic twins)

Accepted Answer

A) are related genetically the same as monozygotic twins. 
B) share 0% genetic similarities. 
C) are similar in 100% of genetic sequences. 
D) are related genetically the same as non-twin siblings. 
E) are similar to the parents. 
A) are related genetically the same as monozygotic twins. 
B) share 0% genetic similarities. 
C) are similar in 100% of genetic sequences. 
D) are related genetically the same as non-twin siblings. 
E) are similar to the parents.

A number of interacting genes produce quantitative inheritance.The transmission of these genes can be seen in the phenotypical pattern of

The response to selection, R, is equal to

The total phenotype variance (V_P) is

By definition linkage disequilibrium means that

Multifactorial inheritance is observed in phenotypes that show typically

The total genetic relatedness of two siblings is

Introgressions are used to

In an experiment to distinguish genetic versus environmental effects on a phenotype it is important to make sure that the test individuals

Which of the following is not true about monozygotic twins?

Multifactorial traits

Broad sense heritability is defined as

Twins from two individual zygotes (dizygotic twins)

Genetics: The Study of Biological Information

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

Digital Analysis of Genomes

Analyzing Genomic Information

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

Filters

Exam 21: Genetics of Complex Traits

A number of interacting genes produce quantitative inheritance.The transmission of these genes can be seen in the phenotypical pattern of

The response to selection, R, is equal to

The total phenotype variance (VP) is

By definition linkage disequilibrium means that

Multifactorial inheritance is observed in phenotypes that show typically

The total genetic relatedness of two siblings is

Introgressions are used to

In an experiment to distinguish genetic versus environmental effects on a phenotype it is important to make sure that the test individuals

Which of the following is not true about monozygotic twins?

Multifactorial traits

Broad sense heritability is defined as

Twins from two individual zygotes (dizygotic twins)

Genetics: The Study of Biological Information

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

Digital Analysis of Genomes

Analyzing Genomic Information

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

Filters

The total phenotype variance (V_P) is