Test Bank
Genetics Essentials: Concepts And Connections 5th Edition By
Benjamin A. Pierce
Www.Plusbay.Plus
,Table Of Content
Chapter 01: Introduction To Genetics
Chapter 02: Chromosomes And Cellular Reproduction
Chapter 03: Basic Principles Of Heredity
Chapter 04: Extensions And Modifications Of Basic Principles
Chapter 05: Linkage, Recombination, And Eukaryotic Gene Mapping
Chapter 06: Chromosome Variation
Chapter 07: Bacterial And Viral Genetic Systems
Chapter 08 Dna: The Chemical Nature Of The Gene
Chapter 09: Dna Replication And Recombination
Chapter 10: From Dna To Proteins: Transcription And Rna Processing
Chapter 11: From Dna To Proteins: Translation
Chapter 12: Control Of Gene Expression
Chapter 13: Gene Mutations, Transposable Elements, And Dna Repair
Chapter 14: Molecular Genetic Analysis And Biotechnology
Chapter 15: Genomics And Proteomics
Chapter 16: Cancer Genetics
Chapter 17: Quantitative Genetics
Chapter 18: Population And Evolutionary Genetics
,Chapter 01: Introduction To Genetics
1. Albinism Is Rare In Most Human Populations, Occurring At A Frequency Of About 1 In 20,000 People.
However, The Trait Occurs At A Frequency Of 1 In 200 In Certain Hopi Villages Of Black Mesa In Arizona.
Explain In Terms Of Natural Selection Why Albinism Is So Rare In Most Human Populations.
Answer: In Most Populations, There Is Fairly Strong Selection Against Albinism Because Albinos Don’t
Produce Melanin, Causing Their Skin Cells Not To Be Protected From The Damaging Effects Of
Sunlight. Also, The Lack Of Melanin In Their Eyes Causes Them To Have Poor Eyesight. Finally,
In Most Cultures Albinos Are Seen As Abnormal, And They Are Not Normally Sought Out For
Marriage And Mating. Therefore, In Most Populations The Alleles That Cause Albinism Are
Selected Against, And They Decrease In Frequency Or Are Kept At A Low Level, Causing The
Recessive Trait To Be Rare.
2. Albinism Is Rare In Most Human Populations, Occurring At A Frequency Of About 1 In 20,000 People.
However, The Trait Occurs At A Frequency Of 1 In 200 In Certain Hopi Villages Of Black Mesa In Arizona.
Explain In Terms Of Natural Selection Why The Trait Is So Much More Common Among The Hopis Of Black
Mesa.
Answer: Albinos Occupy A Privileged Position Among The Hopis Of Black Mesa. In This Culture, Albinos
Are Viewed As Especially Pretty, Clean, And Intelligent, And They Often Occupy Positions Of
Leadership. Albinos Are Celebrated In The Villages As A Sign Of Purity Of Hopi Blood In The
Community.
Furthermore, Albinos Are Often Excused From Normal Male Field Labor Because Of Their
Sensitivity To Sunlight, Causing Them To Be Left Behind In The Village With The Women During
The Daytime. This Allows Them Extra Mating Opportunities Compared To The Other Men Of The
Village. Therefore, The Alleles That Cause Albinism Are Either Selected For In This Culture Or At
Least Not Selected Against As Strongly As In Other Cultures, Allowing The Trait To Occur At A
Much Higher Frequency.
3. Which One Of The Following Pairings Between The Subdiscipline Of Genetics And The
Phenomenon Is Incorrect?
a. Evolution—Population Genetics
b. Gene Regulation—Molecular Genetics
c. Allelic Frequency Alteration—Population Genetics
d. Arrangement Of Genes On Chromosome—Transmission Genetics
e. Chemical Nature Of The Gene—Transmission Genetics
Answer: E
4. Which One Of The Following Topics Of Research Belongs To The Discipline Of Transmission Genetics?
a. Inheritance Pattern Of Gene Alleles
b. Mechanism Of Dna Replication
c. Gene Expression Patterns
d. Evolution
e. Chemical Modification Of Nucleic Acids
Answer: A
5. The Complete Genetic Makeup Of An Organism Is Referred To As Its
a. Chromosome.
, b. Alleles.
c. Locus.
Genetics Essentials: Concepts And Connections 5th Edition By
Benjamin A. Pierce
Www.Plusbay.Plus
,Table Of Content
Chapter 01: Introduction To Genetics
Chapter 02: Chromosomes And Cellular Reproduction
Chapter 03: Basic Principles Of Heredity
Chapter 04: Extensions And Modifications Of Basic Principles
Chapter 05: Linkage, Recombination, And Eukaryotic Gene Mapping
Chapter 06: Chromosome Variation
Chapter 07: Bacterial And Viral Genetic Systems
Chapter 08 Dna: The Chemical Nature Of The Gene
Chapter 09: Dna Replication And Recombination
Chapter 10: From Dna To Proteins: Transcription And Rna Processing
Chapter 11: From Dna To Proteins: Translation
Chapter 12: Control Of Gene Expression
Chapter 13: Gene Mutations, Transposable Elements, And Dna Repair
Chapter 14: Molecular Genetic Analysis And Biotechnology
Chapter 15: Genomics And Proteomics
Chapter 16: Cancer Genetics
Chapter 17: Quantitative Genetics
Chapter 18: Population And Evolutionary Genetics
,Chapter 01: Introduction To Genetics
1. Albinism Is Rare In Most Human Populations, Occurring At A Frequency Of About 1 In 20,000 People.
However, The Trait Occurs At A Frequency Of 1 In 200 In Certain Hopi Villages Of Black Mesa In Arizona.
Explain In Terms Of Natural Selection Why Albinism Is So Rare In Most Human Populations.
Answer: In Most Populations, There Is Fairly Strong Selection Against Albinism Because Albinos Don’t
Produce Melanin, Causing Their Skin Cells Not To Be Protected From The Damaging Effects Of
Sunlight. Also, The Lack Of Melanin In Their Eyes Causes Them To Have Poor Eyesight. Finally,
In Most Cultures Albinos Are Seen As Abnormal, And They Are Not Normally Sought Out For
Marriage And Mating. Therefore, In Most Populations The Alleles That Cause Albinism Are
Selected Against, And They Decrease In Frequency Or Are Kept At A Low Level, Causing The
Recessive Trait To Be Rare.
2. Albinism Is Rare In Most Human Populations, Occurring At A Frequency Of About 1 In 20,000 People.
However, The Trait Occurs At A Frequency Of 1 In 200 In Certain Hopi Villages Of Black Mesa In Arizona.
Explain In Terms Of Natural Selection Why The Trait Is So Much More Common Among The Hopis Of Black
Mesa.
Answer: Albinos Occupy A Privileged Position Among The Hopis Of Black Mesa. In This Culture, Albinos
Are Viewed As Especially Pretty, Clean, And Intelligent, And They Often Occupy Positions Of
Leadership. Albinos Are Celebrated In The Villages As A Sign Of Purity Of Hopi Blood In The
Community.
Furthermore, Albinos Are Often Excused From Normal Male Field Labor Because Of Their
Sensitivity To Sunlight, Causing Them To Be Left Behind In The Village With The Women During
The Daytime. This Allows Them Extra Mating Opportunities Compared To The Other Men Of The
Village. Therefore, The Alleles That Cause Albinism Are Either Selected For In This Culture Or At
Least Not Selected Against As Strongly As In Other Cultures, Allowing The Trait To Occur At A
Much Higher Frequency.
3. Which One Of The Following Pairings Between The Subdiscipline Of Genetics And The
Phenomenon Is Incorrect?
a. Evolution—Population Genetics
b. Gene Regulation—Molecular Genetics
c. Allelic Frequency Alteration—Population Genetics
d. Arrangement Of Genes On Chromosome—Transmission Genetics
e. Chemical Nature Of The Gene—Transmission Genetics
Answer: E
4. Which One Of The Following Topics Of Research Belongs To The Discipline Of Transmission Genetics?
a. Inheritance Pattern Of Gene Alleles
b. Mechanism Of Dna Replication
c. Gene Expression Patterns
d. Evolution
e. Chemical Modification Of Nucleic Acids
Answer: A
5. The Complete Genetic Makeup Of An Organism Is Referred To As Its
a. Chromosome.
, b. Alleles.
c. Locus.
