Question 1

The southern migration of which African people may have led to a significant increase in the incidence of malaria?

Accepted Answer

A)  Masai 
B)  Turkana 
C)  Efe 
D)  Bantu 
A)  Masai 
B)  Turkana 
C)  Efe 
D)  Bantu D

Question 2

Which of the following is a good definition of natural selection?

Accepted Answer

A)  survival of the fittest 
B)  nonrandom elimination of alleles 
C)  upward progression 
D)  random changes in organisms' genetic makeup 
A)  survival of the fittest 
B)  nonrandom elimination of alleles 
C)  upward progression 
D)  random changes in organisms' genetic makeup B

Question 3

Which of the following is NOT a genetic disorder that decreases susceptibility to malaria?

Accepted Answer

A)  G6PD deficiency (favism) 
B)  sickle-cell anemia 
C)  Huntington's chorea 
D)  thalassemia 
A)  G6PD deficiency (favism) 
B)  sickle-cell anemia 
C)  Huntington's chorea 
D)  thalassemia C

Question 4

Over a period of two generations, the frequency of green dung beetles in a population shifts from 75% to 71%, while the frequency of brown dung beetles within this population shifts from 25% to 29%.This is an example of

Accepted Answer

A)  minievolution. 
B)  microevolution. 
C)  millievolution. 
D)  nanoevolution. 
A)  minievolution. 
B)  microevolution. 
C)  millievolution. 
D)  nanoevolution.

Question 5

What is the meaning of the phrase "disease is an agent of natural selection"?

Accepted Answer

A)  Disease can favor survival of individuals who carry specific alleles. 
B)  Natural selection can cause a disease. 
C)  Disease removes the effects of natural selection. 
D)  Disease randomizes natural selection. 
A)  Disease can favor survival of individuals who carry specific alleles. 
B)  Natural selection can cause a disease. 
C)  Disease removes the effects of natural selection. 
D)  Disease randomizes natural selection.

Question 6

Familial hypercholesterolemia, an autosomal dominant disease, is five times more frequent in the Afrikaner population of South Africa than in the original population of Europe from which the ancestors to the Afrikaners emigrated.This represents an example of

Accepted Answer

A)  natural selection. 
B)  bottleneck. 
C)  the founder effect. 
D)  kin selection. 
A)  natural selection. 
B)  bottleneck. 
C)  the founder effect. 
D)  kin selection.

Question 7

A random change in allele frequencies over time is known as

Accepted Answer

A)  genetic drift. 
B)  gene flow. 
C)  admixture. 
D)  gene migration. 
A)  genetic drift. 
B)  gene flow. 
C)  admixture. 
D)  gene migration.

Question 8

What is a polymorphic trait? Provide two examples of polymorphic traits in modern humans, and give one example of a monomorphic trait.

Accepted Answer

A polymorphic trait is one in which at l

Question 9

Why is the peppered moth an excellent example of directional selection?

Accepted Answer

The peppered moth exists in two forms, o

Question 10

Frameshift mutations are more likely to have an impact at the phenotypic level because they

Accepted Answer

A)  are the result of a change in a single nucleotide. 
B)  are the result of exposure to radiation. 
C)  produce a protein having no function. 
D)  are mobile pieces of DNA. 
A)  are the result of a change in a single nucleotide. 
B)  are the result of exposure to radiation. 
C)  produce a protein having no function. 
D)  are mobile pieces of DNA.

Question 11

Which of the evolutionary forces is MOST likely to decrease variation between populations?

Accepted Answer

A)  gene flow 
B)  the founder effect 
C)  mutation 
D)  natural selection 
A)  gene flow 
B)  the founder effect 
C)  mutation 
D)  natural selection

Question 12

Why is the incidence of sickle-cell anemia an excellent example of a "balanced polymorphism,"
in which two or more alleles are maintained by natural selection in a population?

Accepted Answer

Homozygous-normal individuals have healt

Question 13

When individuals of the same species are reproductively isolated, genetic differences may accumulate in sufficient number so that new species could emerge.Such an event would be an example of

Accepted Answer

A)  microevolution. 
B)  the founder effect. 
C)  equilibrium. 
D)  macroevolution. 
A)  microevolution. 
B)  the founder effect. 
C)  equilibrium. 
D)  macroevolution.

Question 14

The absence of the A and B blood type alleles in Native American populations is a result of

Accepted Answer

A)  natural selection. 
B)  gene flow. 
C)  the founder effect. 
D)  mutation. 
A)  natural selection. 
B)  gene flow. 
C)  the founder effect. 
D)  mutation.

Question 15

Patrilocal societies are expected to display

Accepted Answer

A)  greater mtDNA diversity than Y chromosome diversity. 
B)  roughly equivalent mtDNA and Y chromosome diversity. 
C)  greater Y chromosome diversity than mtDNA diversity. 
D)  no strong correlation between societal structure and genetic diversity. 
A)  greater mtDNA diversity than Y chromosome diversity. 
B)  roughly equivalent mtDNA and Y chromosome diversity. 
C)  greater Y chromosome diversity than mtDNA diversity. 
D)  no strong correlation between societal structure and genetic diversity.

Question 16

The clinal decrease in type B blood from East Asia to western Europe is probably the result of

Accepted Answer

A)  the founder effect. 
B)  stabilizing selection. 
C)  mutation. 
D)  gene flow. 
A)  the founder effect. 
B)  stabilizing selection. 
C)  mutation. 
D)  gene flow.

Question 17

A genetic study conducted over two generations found that the frequencies of genotypes in the first generation were AA: 0.36, Aa: 0.48, and aa: 0.16.In the second generation, genotype frequencies remained the same.According to the Hardy-Weinberg equilibrium, we can assume

Accepted Answer

A)  negative assortative mating has maintained gene frequencies. 
B)  mutations have likely occurred, resulting in the same frequency. 
C)  mating in this population is random. 
D)  the population is small and we cannot detect change. 
A)  negative assortative mating has maintained gene frequencies. 
B)  mutations have likely occurred, resulting in the same frequency. 
C)  mating in this population is random. 
D)  the population is small and we cannot detect change.

Question 18

Another name for the evolutionary force called gene flow is

Accepted Answer

A)  the founder effect. 
B)  disruptive selection. 
C)  admixture. 
D)  transposition. 
A)  the founder effect. 
B)  disruptive selection. 
C)  admixture. 
D)  transposition.

Question 19

The type of selection that favored progressively larger brain size in human evolution is ________ selection.

Accepted Answer

A)  natural 
B)  directional 
C)  stabilizing 
D)  disruptive 
A)  natural 
B)  directional 
C)  stabilizing 
D)  disruptive

Question 20

Why is a frameshift mutation far more likely to lead to a defective protein than a point mutation?

Accepted Answer

The potential effects of a point mutatio

The southern migration of which African people may have led to a significant increase in the incidence of malaria?

Which of the following is a good definition of natural selection?

Which of the following is NOT a genetic disorder that decreases susceptibility to malaria?

Over a period of two generations, the frequency of green dung beetles in a population shifts from 75% to 71%, while the frequency of brown dung beetles within this population shifts from 25% to 29%.This is an example of

What is the meaning of the phrase "disease is an agent of natural selection"?

Familial hypercholesterolemia, an autosomal dominant disease, is five times more frequent in the Afrikaner population of South Africa than in the original population of Europe from which the ancestors to the Afrikaners emigrated.This represents an example of

A random change in allele frequencies over time is known as

What is a polymorphic trait? Provide two examples of polymorphic traits in modern humans, and give one example of a monomorphic trait.

Why is the peppered moth an excellent example of directional selection?

Frameshift mutations are more likely to have an impact at the phenotypic level because they

Which of the evolutionary forces is MOST likely to decrease variation between populations?

Why is the incidence of sickle-cell anemia an excellent example of a "balanced polymorphism," in which two or more alleles are maintained by natural selection in a population?

When individuals of the same species are reproductively isolated, genetic differences may accumulate in sufficient number so that new species could emerge.Such an event would be an example of

The absence of the A and B blood type alleles in Native American populations is a result of

Patrilocal societies are expected to display

The clinal decrease in type B blood from East Asia to western Europe is probably the result of

A genetic study conducted over two generations found that the frequencies of genotypes in the first generation were AA: 0.36, Aa: 0.48, and aa: 0.16.In the second generation, genotype frequencies remained the same.According to the Hardy-Weinberg equilibrium, we can assume

Another name for the evolutionary force called gene flow is

The type of selection that favored progressively larger brain size in human evolution is ________ selection.

Why is a frameshift mutation far more likely to lead to a defective protein than a point mutation?

What Is Biological Anthropology

Evolution: Constructing a Fundamental Scientific Theory

Genetics: Reproducing Life and Producing Variation

Biology in the Present: Living People

Biology in the Present: the Other Living Primates

Primate Sociality, Social Behavior, and Culture

Fossils and Their Place in Time and Nature

Primate Origins and Evolution: the First 50 Million Years

Early Hominin Origins and Evolution: The Roots of Humanity

The Origins and Evolution of Early Homo

The Origins, Evolution, and Dispersal of Modern People

The Past 10,000 Years: Agriculture, Population, Biology

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Exam 4: Genes and Their Evolution: Population Genetics

The southern migration of which African people may have led to a significant increase in the incidence of malaria?

Which of the following is a good definition of natural selection?

Which of the following is NOT a genetic disorder that decreases susceptibility to malaria?

Over a period of two generations, the frequency of green dung beetles in a population shifts from 75% to 71%, while the frequency of brown dung beetles within this population shifts from 25% to 29%.This is an example of

What is the meaning of the phrase "disease is an agent of natural selection"?

Familial hypercholesterolemia, an autosomal dominant disease, is five times more frequent in the Afrikaner population of South Africa than in the original population of Europe from which the ancestors to the Afrikaners emigrated.This represents an example of

A random change in allele frequencies over time is known as

What is a polymorphic trait? Provide two examples of polymorphic traits in modern humans, and give one example of a monomorphic trait.

Why is the peppered moth an excellent example of directional selection?

Frameshift mutations are more likely to have an impact at the phenotypic level because they

Which of the evolutionary forces is MOST likely to decrease variation between populations?

Why is the incidence of sickle-cell anemia an excellent example of a "balanced polymorphism," in which two or more alleles are maintained by natural selection in a population?

When individuals of the same species are reproductively isolated, genetic differences may accumulate in sufficient number so that new species could emerge.Such an event would be an example of

The absence of the A and B blood type alleles in Native American populations is a result of

Patrilocal societies are expected to display

The clinal decrease in type B blood from East Asia to western Europe is probably the result of

A genetic study conducted over two generations found that the frequencies of genotypes in the first generation were AA: 0.36, Aa: 0.48, and aa: 0.16.In the second generation, genotype frequencies remained the same.According to the Hardy-Weinberg equilibrium, we can assume

Another name for the evolutionary force called gene flow is

The type of selection that favored progressively larger brain size in human evolution is ________ selection.

Why is a frameshift mutation far more likely to lead to a defective protein than a point mutation?

What Is Biological Anthropology

Evolution: Constructing a Fundamental Scientific Theory

Genetics: Reproducing Life and Producing Variation

Biology in the Present: Living People

Biology in the Present: the Other Living Primates

Primate Sociality, Social Behavior, and Culture

Fossils and Their Place in Time and Nature

Primate Origins and Evolution: the First 50 Million Years

Early Hominin Origins and Evolution: The Roots of Humanity

The Origins and Evolution of Early Homo

The Origins, Evolution, and Dispersal of Modern People

The Past 10,000 Years: Agriculture, Population, Biology

Filters