Question 1

An overabundance of vitamin D in the body causes rickets.

Accepted Answer

A) True 
 B)False

Question 2

Natural selection operates directly on the genotype of an organism.

Accepted Answer

A) True 
 B)False

Question 3

Gene flow and interbreeding act against

Accepted Answer

A) migration. 
B) speciation. 
C) natural selection. 
D) mutations. 
E) balanced polymorphisms. 
A) migration. 
B) speciation. 
C) natural selection. 
D) mutations. 
E) balanced polymorphisms.

Question 4

Genotype refers to expressed traits that are determined by genetic makeup.

Accepted Answer

A) True 
 B)False

Question 5

Genetic evolution involves changes in gene frequencies between generations within a given breeding population.

Accepted Answer

A) True 
 B)False

Question 6

__________ causes neural tube defects.

Accepted Answer

A) An overproduction of vitamin D 
B) An underproduction of vitamin D 
C) A diet rich in fatty fishes 
D) The HbS allele 
E) The destruction of folate 
A) An overproduction of vitamin D 
B) An underproduction of vitamin D 
C) A diet rich in fatty fishes 
D) The HbS allele 
E) The destruction of folate

Question 7

___________ created the first biological classification (taxonomy) of plants and animals.

Accepted Answer

A) Sir Charles Lyell 
B) Charles Darwin 
C) Gregor Mendel 
D) Alfred Russel Wallace 
E) Carolus Linnaeus 
A) Sir Charles Lyell 
B) Charles Darwin 
C) Gregor Mendel 
D) Alfred Russel Wallace 
E) Carolus Linnaeus

Question 8

Racial classifications do not accurately represent the wide diversity of biological traits present among human populations.

Accepted Answer

A) True 
 B)False

Question 9

Independent assortment and recombination play a role in evolution by

Accepted Answer

A) limiting the amount of variation in a population. 
B) increasing the frequencies of deleterious genes. 
C) limiting the number of potential phenotypes. 
D) creating genetic variability in a breeding population. 
E) reducing the overall fitness of a breeding population. 
A) limiting the amount of variation in a population. 
B) increasing the frequencies of deleterious genes. 
C) limiting the number of potential phenotypes. 
D) creating genetic variability in a breeding population. 
E) reducing the overall fitness of a breeding population.

Question 10

Mutations introduce genetic variation into a gene pool.

Accepted Answer

A) True 
 B)False

Question 11

___________ states that explanations for past events should be sought in the long-term action of natural forces that are still observable.

Accepted Answer

A) Uniformitarianism 
B) Creationism 
C) Catastrophism 
D) Recombination 
E) Independent assortment 
A) Uniformitarianism 
B) Creationism 
C) Catastrophism 
D) Recombination 
E) Independent assortment

Question 12

The allele HbS that codes for the type of hemoglobin associated with sickle-cell anemia

Accepted Answer

A) is distributed evenly throughout all human populations. 
B) less susceptible to malaria. 
C) is always lethal when found in a human population. 
D) has no effect on the viability of a population. 
E) is never expressed in the phenotype when present in a homozygous state. 
A) is distributed evenly throughout all human populations. 
B) less susceptible to malaria. 
C) is always lethal when found in a human population. 
D) has no effect on the viability of a population. 
E) is never expressed in the phenotype when present in a homozygous state.

Question 13

__________ is the process that produces sex cells.

Accepted Answer

A) Directional selection 
B) Recombination 
C) Mitosis 
D) Independent assortment 
E) Meiosis 
A) Directional selection 
B) Recombination 
C) Mitosis 
D) Independent assortment 
E) Meiosis

Question 14

Random genetic drift is most common in large breeding populations.

Accepted Answer

A) True 
 B)False

Question 15

Mendelian genetics studies

Accepted Answer

A) changes in gene frequencies in breeding populations. 
B) the ways in which chromosomes transmit genes across generations. 
C) how nuclear DNA transmits information to other parts of the cell. 
D) evolution in pea plants. 
E) phenotypic mutations. 
A) changes in gene frequencies in breeding populations. 
B) the ways in which chromosomes transmit genes across generations. 
C) how nuclear DNA transmits information to other parts of the cell. 
D) evolution in pea plants. 
E) phenotypic mutations.

Question 16

Discuss what it means when a trait is adaptive or maladaptive depending on environmental conditions.Give at least one example.

Accepted Answer

When a trait is considered adaptive, it

Question 17

Rather than attempting to classify humans into racial categories, biologists and anthropologists are

Accepted Answer

A) denying the existence of any biological variation among humankind. 
B) attempting to create new categories based only on blood type. 
C) confident that earlier racial classifications are still valid. 
D) trying to verify anthropometric data from the turn of the century. 
E) seeking to explain why specific biological variations occur. 
A) denying the existence of any biological variation among humankind. 
B) attempting to create new categories based only on blood type. 
C) confident that earlier racial classifications are still valid. 
D) trying to verify anthropometric data from the turn of the century. 
E) seeking to explain why specific biological variations occur.

Question 18

Gene flow between populations tends to prevent speciation.

Accepted Answer

A) True 
 B)False

Question 19

The term gene flow refers to

Accepted Answer

A) the random loss of genes through sampling error. 
B) the genetic mutations that occur during meiosis. 
C) the movement of alleles from one chromosome to another. 
D) the transmission of genetic material between populations of the same species. 
E) a random pattern of chromosome mutations. 
A) the random loss of genes through sampling error. 
B) the genetic mutations that occur during meiosis. 
C) the movement of alleles from one chromosome to another. 
D) the transmission of genetic material between populations of the same species. 
E) a random pattern of chromosome mutations.

Question 20

Microbes have been major selective agents for humans, particularly before the arrival of modern medicine.

Accepted Answer

A) True 
 B)False

An overabundance of vitamin D in the body causes rickets.

Natural selection operates directly on the genotype of an organism.

Gene flow and interbreeding act against

Genotype refers to expressed traits that are determined by genetic makeup.

Genetic evolution involves changes in gene frequencies between generations within a given breeding population.

__________ causes neural tube defects.

___________ created the first biological classification (taxonomy) of plants and animals.

Racial classifications do not accurately represent the wide diversity of biological traits present among human populations.

Independent assortment and recombination play a role in evolution by

Mutations introduce genetic variation into a gene pool.

___________ states that explanations for past events should be sought in the long-term action of natural forces that are still observable.

The allele Hb^S that codes for the type of hemoglobin associated with sickle-cell anemia

__________ is the process that produces sex cells.

Random genetic drift is most common in large breeding populations.

Mendelian genetics studies

Discuss what it means when a trait is adaptive or maladaptive depending on environmental conditions.Give at least one example.

Rather than attempting to classify humans into racial categories, biologists and anthropologists are

Gene flow between populations tends to prevent speciation.

The term gene flow refers to

Microbes have been major selective agents for humans, particularly before the arrival of modern medicine.

What Is Anthropology

Culture

Doing Anthropology

The Primates

Early Hominins

The Genus Homo

The First Farmers

The First Cities and States

Language and Communication

Making a Living

Political Systems

Families, Kinship, and Marriage

Gender

Religion

Ethnicity and Race

Applying Anthropology

The World System and Colonialism

Anthropologys Role in a Globalizing World

Filters

Exam 4: Evolution, Genetics, and Human Variation

An overabundance of vitamin D in the body causes rickets.

Natural selection operates directly on the genotype of an organism.

Gene flow and interbreeding act against

Genotype refers to expressed traits that are determined by genetic makeup.

Genetic evolution involves changes in gene frequencies between generations within a given breeding population.

__________ causes neural tube defects.

___________ created the first biological classification (taxonomy) of plants and animals.

Racial classifications do not accurately represent the wide diversity of biological traits present among human populations.

Independent assortment and recombination play a role in evolution by

Mutations introduce genetic variation into a gene pool.

___________ states that explanations for past events should be sought in the long-term action of natural forces that are still observable.

The allele HbS that codes for the type of hemoglobin associated with sickle-cell anemia

__________ is the process that produces sex cells.

Random genetic drift is most common in large breeding populations.

Mendelian genetics studies

Discuss what it means when a trait is adaptive or maladaptive depending on environmental conditions.Give at least one example.

Rather than attempting to classify humans into racial categories, biologists and anthropologists are

Gene flow between populations tends to prevent speciation.

The term gene flow refers to

Microbes have been major selective agents for humans, particularly before the arrival of modern medicine.

What Is Anthropology

Culture

Doing Anthropology

The Primates

Early Hominins

The Genus Homo

The First Farmers

The First Cities and States

Language and Communication

Making a Living

Political Systems

Families, Kinship, and Marriage

Gender

Religion

Ethnicity and Race

Applying Anthropology

The World System and Colonialism

Anthropologys Role in a Globalizing World

Filters

The allele Hb^S that codes for the type of hemoglobin associated with sickle-cell anemia