Question 1

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

Accepted Answer

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

Question 2

What effect does natural selection have on population variation?

Accepted Answer

A) increases variation 
B) decreases variation 
C) both increases and decreases variation 
D) does not affect variation 
A) increases variation 
B) decreases variation 
C) both increases and decreases variation 
D) does not affect variation

Question 3

Mutations caused by some external agent such as X-rays or exposure to toxic chemicals are called spontaneous mutations.

Accepted Answer

A) True 
 B)False

Question 4

In a classroom taste-test for PTC the genotype frequency was determined to be P = .35 and Q = .65.After applying the Hardy-Weinberg equation,the percentage of genotypes were found to be as follows:

Accepted Answer

A)    
B)    
C)    
D) none of the above 
A)    
B)    
C)    
D) none of the above

Question 5

Hardy-Weinberg equilibrium assumes:

Accepted Answer

A) strong selection pressure on the trait(s)being studied. 
B) a significant mutation rate from generation to generation. 
C) gene flow that is equal both into and out of the population. 
D) no gene flow,mutation,genetic drift,or natural selection. 
A) strong selection pressure on the trait(s)being studied. 
B) a significant mutation rate from generation to generation. 
C) gene flow that is equal both into and out of the population. 
D) no gene flow,mutation,genetic drift,or natural selection.

Question 6

Reproductive isolation is key to the development of individual species.

Accepted Answer

A) True 
 B)False

Question 7

The evolution of the modern horse with a single hoof on each limb from a dog-sized ancestor with multiple digits is an example of:

Accepted Answer

A) macroevolution. 
B) stabilizing selection. 
C) disruptive selection. 
D) microevolution. 
A) macroevolution. 
B) stabilizing selection. 
C) disruptive selection. 
D) microevolution.

Question 8

A study of Darwin's finches after a long period of drought found that all species of finch on one of the islands have developed wide beaks in order to break open seeds.The type of evolution that leads to this phenotype distribution is:

Accepted Answer

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

Question 9

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

Question 10

Explain how the founder effect can lead to a descendent population that differs greatly from its parent population over a relatively short period of time.

Accepted Answer

Founder effect is a special kind of gene

Question 11

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

Accepted Answer

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

Question 12

Transposable elements are DNA sequences that:

Accepted Answer

A) are not coded to produce proteins. 
B) contain numerous point mutations. 
C) occur only on the X and Y chromosomes. 
D) insert themselves into other parts of the genome. 
A) are not coded to produce proteins. 
B) contain numerous point mutations. 
C) occur only on the X and Y chromosomes. 
D) insert themselves into other parts of the genome.

Question 13

The ABO and MN blood-type frequencies of the Dunkers differ significantly from those of current American and German populations due to:

Accepted Answer

A) genetic drift. 
B) natural selection. 
C) gene flow. 
D) mutation. 
A) genetic drift. 
B) natural selection. 
C) gene flow. 
D) mutation.

Question 14

Australian aborigines are an endogamous society.This means that marriage and reproduction take place within the group leading to:

Accepted Answer

A) increased genetic diversity through genetic drift. 
B) migration without gene flow. 
C) more genetic diversity than would be observed in an exogamous society. 
D) decreased genetic diversity due to a lack of admixture. 
A) increased genetic diversity through genetic drift. 
B) migration without gene flow. 
C) more genetic diversity than would be observed in an exogamous society. 
D) decreased genetic diversity due to a lack of admixture.

Question 15

A point mutation that does not result in a change to the amino acid coded for is said to be a:

Accepted Answer

A) spontaneous mutation. 
B) synonymous mutation. 
C) selective mutation. 
D) stabilizing mutation. 
A) spontaneous mutation. 
B) synonymous mutation. 
C) selective mutation. 
D) stabilizing mutation.

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

What effect does natural selection have on population variation?

Mutations caused by some external agent such as X-rays or exposure to toxic chemicals are called spontaneous mutations.

In a classroom taste-test for PTC the genotype frequency was determined to be P = .35 and Q = .65.After applying the Hardy-Weinberg equation,the percentage of genotypes were found to be as follows:

Hardy-Weinberg equilibrium assumes:

Reproductive isolation is key to the development of individual species.

The evolution of the modern horse with a single hoof on each limb from a dog-sized ancestor with multiple digits is an example of:

A study of Darwin's finches after a long period of drought found that all species of finch on one of the islands have developed wide beaks in order to break open seeds.The type of evolution that leads to this phenotype distribution is:

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

Explain how the founder effect can lead to a descendent population that differs greatly from its parent population over a relatively short period of time.

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

Transposable elements are DNA sequences that:

The ABO and MN blood-type frequencies of the Dunkers differ significantly from those of current American and German populations due to:

Australian aborigines are an endogamous society.This means that marriage and reproduction take place within the group leading to:

A point mutation that does not result in a change to the amino acid coded for is said to be a:

What Is Physical 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 Hominid Origins and Evolution: The Roots of Humanity

The Origins and Evolution of Early Homo

The Origins,evolution,and Dispersal of Modern People

Our Last 10, 000 Years: Agriculture, population, and the Bioarchaeology of a Fundamental Transition

Evolution: Today and Tomorrow

Filters

Exam 4: Genes and Their Evolution: Population Genetics

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

What effect does natural selection have on population variation?

Mutations caused by some external agent such as X-rays or exposure to toxic chemicals are called spontaneous mutations.

In a classroom taste-test for PTC the genotype frequency was determined to be P = .35 and Q = .65.After applying the Hardy-Weinberg equation,the percentage of genotypes were found to be as follows:

Hardy-Weinberg equilibrium assumes:

Reproductive isolation is key to the development of individual species.

The evolution of the modern horse with a single hoof on each limb from a dog-sized ancestor with multiple digits is an example of:

A study of Darwin's finches after a long period of drought found that all species of finch on one of the islands have developed wide beaks in order to break open seeds.The type of evolution that leads to this phenotype distribution is:

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

Explain how the founder effect can lead to a descendent population that differs greatly from its parent population over a relatively short period of time.

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

Transposable elements are DNA sequences that:

The ABO and MN blood-type frequencies of the Dunkers differ significantly from those of current American and German populations due to:

Australian aborigines are an endogamous society.This means that marriage and reproduction take place within the group leading to:

A point mutation that does not result in a change to the amino acid coded for is said to be a:

What Is Physical 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 Hominid Origins and Evolution: The Roots of Humanity

The Origins and Evolution of Early Homo

The Origins,evolution,and Dispersal of Modern People

Our Last 10, 000 Years: Agriculture, population, and the Bioarchaeology of a Fundamental Transition

Evolution: Today and Tomorrow

Filters