Question 1

What is the effect of genetic bottlenecks on human and nonhuman species?

Accepted Answer

Genetic bottlenecks can have significant

Question 2

The HbS allele increased in frequency in West African populations due to which of the following?

Accepted Answer

A)  sickle-cell anemia 
B)  genetic drift 
C)  migration 
D)  increased mutation rates 
E)  natural selection 
A)  sickle-cell anemia 
B)  genetic drift 
C)  migration 
D)  increased mutation rates 
E)  natural selection

Question 3

In a hypothetical situation, B is the allele that causes brachydactyly. If a man who has normal fingers (bb) and a woman with brachydactyly (Bb) have children, what proportion of these children would you expect to have normal fingers? (Hint: Use a Punnett square).

Accepted Answer

A)  None 
B)  All 
C)  1/4 
D)  3/4 
E)  1/2 
A)  None 
B)  All 
C)  1/4 
D)  3/4 
E)  1/2

Question 4

A person who is homozygous recessive at a locus has which of the following?

Accepted Answer

A)  two copies of the recessive allele 
B)  two copies of the dominant allele 
C)  an autosomal trisomy 
D)  a recessive allele on the X chromosome only 
E)  a recessive allele on the Y chromosome only 
A)  two copies of the recessive allele 
B)  two copies of the dominant allele 
C)  an autosomal trisomy 
D)  a recessive allele on the X chromosome only 
E)  a recessive allele on the Y chromosome only

Question 5

What is the term for the condition of two copies of the same allele being present in the genotype?

Accepted Answer

A)  dominant 
B)  codominant 
C)  recessive 
D)  homozygous 
E)  segregated 
A)  dominant 
B)  codominant 
C)  recessive 
D)  homozygous 
E)  segregated

Question 6

Explain how two parents who do NOT express a particular trait in their phenotype can nevertheless produce children who express the trait. Give an example of a specific trait or disease where this could occur.

Accepted Answer

This phenomenon can occur when both pare

Question 7

What is it called when a person possesses two different alleles at the same locus, and both alleles are expressed in the phenotype?

Accepted Answer

A)  recessiveness 
B)  codominance 
C)  dominance 
D)  homozygosity 
E)  X-linkage 
A)  recessiveness 
B)  codominance 
C)  dominance 
D)  homozygosity 
E)  X-linkage

Question 8

Which statement concerning the F1 plants in Mendel's experiments is false?

Accepted Answer

A)  They were hybrids. 
B)  They were heterozygous for the traits in question. 
C)  Their parents were homozygous for the traits in question. 
D)  All F1s displayed the dominant trait in their phenotype. 
E)  All F1s displayed the recessive trait in their phenotype. 
A)  They were hybrids. 
B)  They were heterozygous for the traits in question. 
C)  Their parents were homozygous for the traits in question. 
D)  All F1s displayed the dominant trait in their phenotype. 
E)  All F1s displayed the recessive trait in their phenotype.

Question 9

Which of the following types of traits are governed by more than one genetic locus?

Accepted Answer

A)  polygenic 
B)  dominant 
C)  Mendelian 
D)  recessive 
E)  pleiotropic 
A)  polygenic 
B)  dominant 
C)  Mendelian 
D)  recessive 
E)  pleiotropic

Question 10

Recessive conditions are usually associated with the lack of production of an enzyme.

Accepted Answer

A) True 
 B)False

Question 11

How many ABO phenotypes (blood types) are there?

Accepted Answer

A)  4 
B)  2 
C)  3 
D)  6 
E)  1 
A)  4 
B)  2 
C)  3 
D)  6 
E)  1

Question 12

Gregor Mendel

Accepted Answer

A)  published his results and won the Nobel Prize for his discoveries 
B)  was trained as a geneticist 
C)  did not know about chromosomes 
D)  was a professor at the University of Vienna 
E)  never published his work 
A)  published his results and won the Nobel Prize for his discoveries 
B)  was trained as a geneticist 
C)  did not know about chromosomes 
D)  was a professor at the University of Vienna 
E)  never published his work

Question 13

Genetic drift is the random factor in evolution.

Accepted Answer

A) True 
 B)False

Question 14

The genotype sets limits and potentials for development and interacts with the environment to produce the phenotype.

Accepted Answer

A) True 
 B)False

Question 15

Mendelian traits

Accepted Answer

A)  are governed by more than one genetic locus 
B)  occur only in some people 
C)  are always dominant 
D)  are governed by one genetic locus 
E)  are always recessive 
A)  are governed by more than one genetic locus 
B)  occur only in some people 
C)  are always dominant 
D)  are governed by one genetic locus 
E)  are always recessive

Question 16

How do the basic principles of inheritance, identified by Mendel in plants, differ from those in humans?

Accepted Answer

A)  They are simpler. 
B)  Plants don't have alleles. 
C)  There are no differences since the basic principles are the same. 
D)  There are no Mendelian traits in humans. 
E)  The number of chromosomes is different; therefore the genetic principles are different. 
A)  They are simpler. 
B)  Plants don't have alleles. 
C)  There are no differences since the basic principles are the same. 
D)  There are no Mendelian traits in humans. 
E)  The number of chromosomes is different; therefore the genetic principles are different.

Question 17

Dominance and recessiveness are all-or-nothing situations because the recessive allele has no phenotypic effects in heterozygotes.

Accepted Answer

A) True 
 B)False

Question 18

What is the term used to refer to the observable, physical expression of genotypes?

Accepted Answer

A)  genotype 
B)  phenotype 
C)  phenotypic ratio 
D)  genotypic ratio 
E)  independent assortment 
A)  genotype 
B)  phenotype 
C)  phenotypic ratio 
D)  genotypic ratio 
E)  independent assortment

Question 19

Why is mutation an important element in accounting for the variation in mtDNA? What are the factors that redistribute genetic variation?

Accepted Answer

Mutation is an important element in acco

Question 20

According to the principle of independent assortment there is a __________chance that any tall pea plant will produce either yellow or green peas.

Accepted Answer

A)  0 percent 
B)  25 percent 
C)  50 percent 
D)  75 percent 
E)  100 percent 
A)  0 percent 
B)  25 percent 
C)  50 percent 
D)  75 percent 
E)  100 percent

What is the effect of genetic bottlenecks on human and nonhuman species?

The HbS allele increased in frequency in West African populations due to which of the following?

In a hypothetical situation, B is the allele that causes brachydactyly. If a man who has normal fingers (bb) and a woman with brachydactyly (Bb) have children, what proportion of these children would you expect to have normal fingers? (Hint: Use a Punnett square).

A person who is homozygous recessive at a locus has which of the following?

What is the term for the condition of two copies of the same allele being present in the genotype?

Explain how two parents who do NOT express a particular trait in their phenotype can nevertheless produce children who express the trait. Give an example of a specific trait or disease where this could occur.

What is it called when a person possesses two different alleles at the same locus, and both alleles are expressed in the phenotype?

Which statement concerning the F1 plants in Mendel's experiments is false?

Which of the following types of traits are governed by more than one genetic locus?

Recessive conditions are usually associated with the lack of production of an enzyme.

How many ABO phenotypes (blood types) are there?

Gregor Mendel

Genetic drift is the random factor in evolution.

The genotype sets limits and potentials for development and interacts with the environment to produce the phenotype.

Mendelian traits

How do the basic principles of inheritance, identified by Mendel in plants, differ from those in humans?

Dominance and recessiveness are all-or-nothing situations because the recessive allele has no phenotypic effects in heterozygotes.

What is the term used to refer to the observable, physical expression of genotypes?

Why is mutation an important element in accounting for the variation in mtDNA? What are the factors that redistribute genetic variation?

According to the principle of independent assortment there is a __________chance that any tall pea plant will produce either yellow or green peas.

Introduction to Anthropology

The Development of Evolutionary Theory

Modern Human Variation and Adaptation

Macroevolution: Processes of Vertebrate and Mammalian Evolution

An Overview of the Primates

Primate Behavior

Understanding the Past: Archaeological and Paleoanthropological Methods

Hominin Origins

The First Dispersal of the Genus Homo: Homo Erectus and Contemporaries

Premodern Humans

The Origin and Dispersal of Modern Humans

Early Holocene Hunters and Gatherers

Food Production

The First Civilizations

Conclusion

Filters

Exam 2: Heredity and Evolution

What is the effect of genetic bottlenecks on human and nonhuman species?

The HbS allele increased in frequency in West African populations due to which of the following?

In a hypothetical situation, B is the allele that causes brachydactyly. If a man who has normal fingers (bb) and a woman with brachydactyly (Bb) have children, what proportion of these children would you expect to have normal fingers? (Hint: Use a Punnett square).

A person who is homozygous recessive at a locus has which of the following?

What is the term for the condition of two copies of the same allele being present in the genotype?

Explain how two parents who do NOT express a particular trait in their phenotype can nevertheless produce children who express the trait. Give an example of a specific trait or disease where this could occur.

What is it called when a person possesses two different alleles at the same locus, and both alleles are expressed in the phenotype?

Which statement concerning the F1 plants in Mendel's experiments is false?

Which of the following types of traits are governed by more than one genetic locus?

Recessive conditions are usually associated with the lack of production of an enzyme.

How many ABO phenotypes (blood types) are there?

Gregor Mendel

Genetic drift is the random factor in evolution.

The genotype sets limits and potentials for development and interacts with the environment to produce the phenotype.

Mendelian traits

How do the basic principles of inheritance, identified by Mendel in plants, differ from those in humans?

Dominance and recessiveness are all-or-nothing situations because the recessive allele has no phenotypic effects in heterozygotes.

What is the term used to refer to the observable, physical expression of genotypes?

Why is mutation an important element in accounting for the variation in mtDNA? What are the factors that redistribute genetic variation?

According to the principle of independent assortment there is a __________chance that any tall pea plant will produce either yellow or green peas.

Introduction to Anthropology

The Development of Evolutionary Theory

Modern Human Variation and Adaptation

Macroevolution: Processes of Vertebrate and Mammalian Evolution

An Overview of the Primates

Primate Behavior

Understanding the Past: Archaeological and Paleoanthropological Methods

Hominin Origins

The First Dispersal of the Genus Homo: Homo Erectus and Contemporaries

Premodern Humans

The Origin and Dispersal of Modern Humans

Early Holocene Hunters and Gatherers

Food Production

The First Civilizations

Conclusion

Filters