Question 1

The gene responsible for lactase persistence among adults in Europe is a ________ gene.

Accepted Answer

A) structural 
B) dominant 
C) regulatory 
D) Hox 
A) structural 
B) dominant 
C) regulatory 
D) Hox C

Question 2

How is mitosis different from meiosis?

Accepted Answer

A) Mitosis results in identical copies of the parent cell. 
B) Mitosis results in haploid cells. 
C) Mitosis involves one DNA replication followed by two cell divisions. 
D) Mitosis ultimately results in a reduced number of chromosomes. 
A) Mitosis results in identical copies of the parent cell. 
B) Mitosis results in haploid cells. 
C) Mitosis involves one DNA replication followed by two cell divisions. 
D) Mitosis ultimately results in a reduced number of chromosomes. A

Question 3

To be homologous,chromosomes must:

Accepted Answer

A) be genetically identical. 
B) carry genetic information that influences the same traits. 
C) be inherited only from the mother. 
D) be members of different pairs. 
A) be genetically identical. 
B) carry genetic information that influences the same traits. 
C) be inherited only from the mother. 
D) be members of different pairs. B

Question 4

Unlike RNA,DNA does not include which nucleotide base?

Accepted Answer

A) thymine 
B) adenine 
C) uracil 
D) cytosine 
A) thymine 
B) adenine 
C) uracil 
D) cytosine

Question 5

John and Jane are both heterozygous and have brown eyes.Blue eye alleles are recessive and brown eye alleles are dominant.What is the probability their child will have blue eyes?

Accepted Answer

A) 25% 
B) 100% 
C) 50% 
D) 0% 
A) 25% 
B) 100% 
C) 50% 
D) 0%

Question 6

What genotype do individuals whose blood type is A and who carry both dominant and recessive genes at this locus have?

Accepted Answer

A) AA 
B) AO 
C) AB 
D) OO 
A) AA 
B) AO 
C) AB 
D) OO

Question 7

What role do Homeotic (Hox)genes play in embryonic development?

Accepted Answer

A) They function as structural genes. 
B) They are responsible for the development and location of key body parts. 
C) They are responsible for determining the sex of offspring. 
D) They are coded to produce hormones. 
A) They function as structural genes. 
B) They are responsible for the development and location of key body parts. 
C) They are responsible for determining the sex of offspring. 
D) They are coded to produce hormones.

Question 8

A small molecule known as a methyl group can attach to DNA.Which of the following statements about this event is true?

Accepted Answer

A) This is the event that initiates DNA transcription. 
B) This is the event that stops DNA translation. 
C) This event,called methylation,usually stops or represses the expression of a gene. 
D) This event,called linkage,was discovered by Mendel but not completely understood until decades later. 
A) This is the event that initiates DNA transcription. 
B) This is the event that stops DNA translation. 
C) This event,called methylation,usually stops or represses the expression of a gene. 
D) This event,called linkage,was discovered by Mendel but not completely understood until decades later.

Question 9

Which of the following is a characteristic of DNA?

Accepted Answer

A) It is single stranded. 
B) It contains six different nucleotide bases. 
C) It directs cellular function. 
D) It contains the base uracil. 
A) It is single stranded. 
B) It contains six different nucleotide bases. 
C) It directs cellular function. 
D) It contains the base uracil.

Question 10

What does genetic analysis of haplotypes and variants among living and precontact Native Americans indicate?

Accepted Answer

A) Native Americans underwent a huge decline in genetic diversity after Columbus's arrival in the New World. 
B) Native Americans living today appear to be as diverse genetically as their ancient ancestors thousands of years ago. 
C) Native Americans have a genetic structure and haplogroups that are quite recent. 
D) Native Americans living today appear to be more diverse genetically than their ancient ancestors. 
A) Native Americans underwent a huge decline in genetic diversity after Columbus's arrival in the New World. 
B) Native Americans living today appear to be as diverse genetically as their ancient ancestors thousands of years ago. 
C) Native Americans have a genetic structure and haplogroups that are quite recent. 
D) Native Americans living today appear to be more diverse genetically than their ancient ancestors.

Question 11

What does polymerase chain reaction (PCR)allow us to do?

Accepted Answer

A) use genetic methods to explore the origins and movements of populations and study small amounts of DNA in ancient skeletons 
B) make only a few copies of tiny sequences of DNA for study 
C) reach conclusions about DNA sequences through a series of tests without viewing actual copies of the DNA 
D) map the dental formulas of skeletons and has primarily led to research centered on the diet of human's ancestors 
A) use genetic methods to explore the origins and movements of populations and study small amounts of DNA in ancient skeletons 
B) make only a few copies of tiny sequences of DNA for study 
C) reach conclusions about DNA sequences through a series of tests without viewing actual copies of the DNA 
D) map the dental formulas of skeletons and has primarily led to research centered on the diet of human's ancestors

Question 12

Transcription occurs in the ________ and results in the ________ .

Accepted Answer

A) nucleus;production of mRNA 
B) ribosome;production of tRNA 
C) nucleus;production of proteins 
D) ribosome;transformation of mitochondria 
A) nucleus;production of mRNA 
B) ribosome;production of tRNA 
C) nucleus;production of proteins 
D) ribosome;transformation of mitochondria

Question 13

What do proteins consist of?

Accepted Answer

A) genes 
B) RNA plus mRNA 
C) chains of DNA nucleotides 
D) chains of amino acids 
A) genes 
B) RNA plus mRNA 
C) chains of DNA nucleotides 
D) chains of amino acids

Question 14

mtDNA is found ________ and is ________.

Accepted Answer

A) in the nucleus;inherited from mother to daughter only 
B) in the cell's "powerhouse";passed on from the mother to all of her offspring 
C) outside of the cell's nucleus;passed on from the father to all his offspring 
D) in prokaryotic cells;found only in females 
A) in the nucleus;inherited from mother to daughter only 
B) in the cell's "powerhouse";passed on from the mother to all of her offspring 
C) outside of the cell's nucleus;passed on from the father to all his offspring 
D) in prokaryotic cells;found only in females

Question 15

Haplotypes are a group of alleles that:

Accepted Answer

A) is not likely to recombine during crossovers. 
B) is likely to recombine during crossovers. 
C) does not pass on for many generations. 
D) comes from one parent only. 
A) is not likely to recombine during crossovers. 
B) is likely to recombine during crossovers. 
C) does not pass on for many generations. 
D) comes from one parent only.

Question 16

How does Deoxyribonucleic acid (DNA)differ from ribonucleic acid (RNA)?

Accepted Answer

A) It was studied during Darwin's lifetime. 
B) It is the "recipe" for all biological characteristics and functions in animals. 
C) It was discovered by Mendel. 
D) It is stored in ribosomes. 
A) It was studied during Darwin's lifetime. 
B) It is the "recipe" for all biological characteristics and functions in animals. 
C) It was discovered by Mendel. 
D) It is stored in ribosomes.

Question 17

Use what you know about meiosis to explain Mendel's law of segregation and law of independent assortment.

Accepted Answer

Although Mendel did not know about chrom

Question 18

Gametes are ________ cells.

Accepted Answer

A) diploid 
B) haploid 
C) homologous 
D) somatic 
A) diploid 
B) haploid 
C) homologous 
D) somatic

Question 19

What is Marfan's syndrome?

Accepted Answer

A) a pleiotropic effect involving a dominant disease affecting collagen growth,tentatively identified by medical historians as having affected President Abraham Lincoln 
B) a pleiotropic effect involving a recessive disease affecting red blood cell development,tentatively identified by medical historians as having caused a life long illness in Charles Darwin 
C) a methylation effect involving bone growth tentatively identified by forensic anthropologists and common among the inhabitants of St.Catherines Island 
D) a disease involving the growth of extra digits (fingers),caused by a dominant gene 
A) a pleiotropic effect involving a dominant disease affecting collagen growth,tentatively identified by medical historians as having affected President Abraham Lincoln 
B) a pleiotropic effect involving a recessive disease affecting red blood cell development,tentatively identified by medical historians as having caused a life long illness in Charles Darwin 
C) a methylation effect involving bone growth tentatively identified by forensic anthropologists and common among the inhabitants of St.Catherines Island 
D) a disease involving the growth of extra digits (fingers),caused by a dominant gene

Question 20

If two alleles influencing the expressed phenotype for a trait are equally expressed,what is this an example of?

Accepted Answer

A) polymorphism 
B) codominance 
C) pleiotropy 
D) Mendelian inheritance 
A) polymorphism 
B) codominance 
C) pleiotropy 
D) Mendelian inheritance

The gene responsible for lactase persistence among adults in Europe is a ________ gene.

How is mitosis different from meiosis?

To be homologous,chromosomes must:

Unlike RNA,DNA does not include which nucleotide base?

John and Jane are both heterozygous and have brown eyes.Blue eye alleles are recessive and brown eye alleles are dominant.What is the probability their child will have blue eyes?

What genotype do individuals whose blood type is A and who carry both dominant and recessive genes at this locus have?

What role do Homeotic (Hox)genes play in embryonic development?

A small molecule known as a methyl group can attach to DNA.Which of the following statements about this event is true?

Which of the following is a characteristic of DNA?

What does genetic analysis of haplotypes and variants among living and precontact Native Americans indicate?

What does polymerase chain reaction (PCR)allow us to do?

Transcription occurs in the and results in the .

What do proteins consist of?

mtDNA is found and is .

Haplotypes are a group of alleles that:

How does Deoxyribonucleic acid (DNA)differ from ribonucleic acid (RNA)?

Use what you know about meiosis to explain Mendel's law of segregation and law of independent assortment.

Gametes are ________ cells.

What is Marfan's syndrome?

If two alleles influencing the expressed phenotype for a trait are equally expressed,what is this an example of?

What Is Physical Anthropology?

Evolution: Constructing a Fundamental Scientific Theory

Genes and Their Evolution: Population Genetics

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

Evolution: Today and Tomorrow

Filters

Exam 3: Genetics: Reproducing Life and Producing Variation

The gene responsible for lactase persistence among adults in Europe is a ________ gene.

How is mitosis different from meiosis?

To be homologous,chromosomes must:

Unlike RNA,DNA does not include which nucleotide base?

John and Jane are both heterozygous and have brown eyes.Blue eye alleles are recessive and brown eye alleles are dominant.What is the probability their child will have blue eyes?

What genotype do individuals whose blood type is A and who carry both dominant and recessive genes at this locus have?

What role do Homeotic (Hox)genes play in embryonic development?

A small molecule known as a methyl group can attach to DNA.Which of the following statements about this event is true?

Which of the following is a characteristic of DNA?

What does genetic analysis of haplotypes and variants among living and precontact Native Americans indicate?

What does polymerase chain reaction (PCR)allow us to do?

Transcription occurs in the ________ and results in the ________ .

What do proteins consist of?

mtDNA is found ________ and is ________.

Haplotypes are a group of alleles that:

How does Deoxyribonucleic acid (DNA)differ from ribonucleic acid (RNA)?

Use what you know about meiosis to explain Mendel's law of segregation and law of independent assortment.

Gametes are ________ cells.

What is Marfan's syndrome?

If two alleles influencing the expressed phenotype for a trait are equally expressed,what is this an example of?

What Is Physical Anthropology?

Evolution: Constructing a Fundamental Scientific Theory

Genes and Their Evolution: Population Genetics

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

Evolution: Today and Tomorrow

Filters

Transcription occurs in the and results in the .

mtDNA is found and is .