Question 1

In humans,if a non-disjunction event led to an individual with a genotype of XO,they would

Accepted Answer

A)  be female because they do not have a Y chromosome.
B)  be male because they only have one X chromosome.
C)  display both male and female characteristics.
D)  not survive.E) A) and C)
F) A) and D)

Question 2

Given that bw and hv are closely linked,which of the following phenotypic ratios can you expect to find in the F2 generation?

Accepted Answer

A)  1 brown,heavy: 2 red,thin: 1 red,thin
B)  1 brown,thin: 2 red,thin: 1 red,heavy
C)  3 red,thin: 1 brown heavy
D)  1 brown: 1 red: 1 heavy: 1 thinE) B) and D)
F) None of the above

Question 3

If an XY individual had a genetic disorder in which they were insensitive to androgens,their genotype and phenotype would be

Accepted Answer

A)  XX,female.
B)  XX,male.
C)  XY,female.
D)  XY,male.E) A) and C)
F) All of the above

Question 4

Genetic exchange between two arms of a chromosome pair is more likely to occur if the distance between the genes is great.It is called

Accepted Answer

A)  epistasis.
B)  pleiotropy.
C)  crossing over.
D)  allelic exchange.
E)  mutation.F) A) and B)
G) B) and D)

Question 5

One of the main reasons genes assort independently of one another is that

Accepted Answer

A)  they produce unrelated traits.
B)  they produce related traits.
C)  they are on the same chromosome.
D)  they are different alleles.
E)  they are on different chromosomes.F) A) and B)
G) A) and C)

Question 6

The clotting of blood depends upon a chain of reactions that involve many different proteins;a faulty gene for any one of these proteins gives rise to the disease called __________.

Accepted Answer

A)  hemophilia
B)  HIV
C)  multiple sclerosis
D)  leukemiaE) B) and C)
F) A) and D)

Question 7

Which of the following animals is a genetic male?

Accepted Answer

A)  bird ZW
B)  grasshopper XO
C)  honeybee diploid
D)  Drosophila XXYE) A) and B)
F) A) and C)

Question 8

Why can't you use mitochondrial DNA to distinguish between these two suspects?

Accepted Answer

A)  The sequence of mitochondrial DNA has not yet been determined.
B)  The brothers share the same mitochondrial DNA.
C)  There are no molecular techniques available that allow one to analyze mitochondrial DNA.
D)  Because mitochondrial DNA is inherited in a paternal pattern.E) C) and D)
F) A) and B)

Question 9

Hemophilia is a

Accepted Answer

A)  recessive condition.
B)  dominant condition.
C)  epistatic condition.
D)  codominant condition.
E)  condition that occurs with equal frequency in both sexes.F) B) and D)
G) A) and B)

Question 10

Which of the following will help you distinguish between the two final suspects?

Accepted Answer

A)  single nucleotide polymorphisms (SNPs) 
B)  human genetic map
C)  linkage data
D)  anonymous markersE) C) and D)
F) B) and D)

Question 11

Of the 23 pairs of human chromosomes,22 pairs are similar in the location of genes and are found in both males and females.These are called _________.

Accepted Answer

A)  chromosomes
B)  autosomes
C)  alleles
D)  gametesE) All of the above
F) A) and B)

Question 12

If some alternative alleles with detrimental effects exist in significant proportions in populations,the condition is called

Accepted Answer

A)  pleiotropy.
B)  a syndrome.
C)  epistasis.
D)  a genetic disorder.
E)  a genetic imbalancE.F) All of the above
G) None of the above

Question 13

Amniocentesis is a procedure that is normally used

Accepted Answer

A)  to reduce the risk of genetic disease.
B)  for gene therapy.
C)  to change the sex of the fetus.
D)  for diagnosis of genetic disorders.
E)  for nourishing the fetus.F) B) and C)
G) B) and D)

Question 14

In humans,the male has an X and Y sex chromosome.The human female has two X chromosomes.In birds,the female has a Z and a W sex chromosome while the male has two Z chromosomes.Which of the following statements is accurate about which parent controls the gender of the offspring?

Accepted Answer

A)  In humans and birds the male controls the gender of all the offspring.
B)  In humans and birds the female controls the gender of all the offspring.
C)  In humans the male controls the gender of the offspring,and in birds the female controls the gender.
D)  In humans the female controls the gender of the offspring,and in birds the male controls the gender.
E)  Control of the gender of any human or bird offspring is related to the environmental conditions at the time of conception.F) B) and E)
G) All of the above

Question 15

Which of the following statements about calico cats is false?

Accepted Answer

A)  Calico cats can be male or female.
B)  The different colored fur is due to the inactivation of one X chromosome.
C)  The variation in coat color is an example of an epistatic interaction.
D)  Calico cats are genetic mosaics.E) All of the above
F) A) and B)

Question 16

The most common condition of trisomy,in which three copies of a chromosome are present instead of the normal two,is of chromosome

Accepted Answer

A)  X.
B)  13.
C)  15.
D)  18.
E)  21.F) A) and B)
G) A) and D)

Question 17

How many Barr bodies does a normal human female contain in her cells?

Accepted Answer

A)  0
B)  1
C)  2
D)  3E) B) and D)
F) All of the above

Exam 13: Chromosomes Mapping and the Meiosis - Inheritance Connection

Which of the following animals is a genetic male?

Correct Answer
verified

One of the main reasons genes assort independently of one another is that

Correct Answer
verified

Hemophilia is a

Correct Answer
verified

Why can't you use mitochondrial DNA to distinguish between these two suspects?

Correct Answer
verified

Genetic exchange between two arms of a chromosome pair is more likely to occur if the distance between the genes is great.It is called

Correct Answer
verified

In humans,the male has an X and Y sex chromosome.The human female has two X chromosomes.In birds,the female has a Z and a W sex chromosome while the male has two Z chromosomes.Which of the following statements is accurate about which parent controls the gender of the offspring?

Correct Answer
verified

If some alternative alleles with detrimental effects exist in significant proportions in populations,the condition is called

Correct Answer
verified

In humans,if a non-disjunction event led to an individual with a genotype of XO,they would

Correct Answer
verified

Given that bw and hv are closely linked,which of the following phenotypic ratios can you expect to find in the F₂ generation?

Correct Answer
verified

Of the 23 pairs of human chromosomes,22 pairs are similar in the location of genes and are found in both males and females.These are called _________.

Correct Answer
verified

Which of the following will help you distinguish between the two final suspects?

Correct Answer
verified

If an XY individual had a genetic disorder in which they were insensitive to androgens,their genotype and phenotype would be

Correct Answer
verified

Which of the following statements about calico cats is false?

Correct Answer
verified

The most common condition of trisomy,in which three copies of a chromosome are present instead of the normal two,is of chromosome

Correct Answer
verified

Amniocentesis is a procedure that is normally used

Correct Answer
verified

How many Barr bodies does a normal human female contain in her cells?

Correct Answer
verified

The clotting of blood depends upon a chain of reactions that involve many different proteins;a faulty gene for any one of these proteins gives rise to the disease called __________.

Correct Answer
verified

Exam 13: Chromosomes Mapping and the Meiosis - Inheritance Connection

Which of the following animals is a genetic male?

Correct AnswerverifiedShow Answer

One of the main reasons genes assort independently of one another is that

Correct AnswerverifiedShow Answer

Hemophilia is a

Correct AnswerverifiedShow Answer

Why can't you use mitochondrial DNA to distinguish between these two suspects?

Correct AnswerverifiedShow Answer

Genetic exchange between two arms of a chromosome pair is more likely to occur if the distance between the genes is great.It is called

Correct AnswerverifiedShow Answer

In humans,the male has an X and Y sex chromosome.The human female has two X chromosomes.In birds,the female has a Z and a W sex chromosome while the male has two Z chromosomes.Which of the following statements is accurate about which parent controls the gender of the offspring?

Correct AnswerverifiedShow Answer

If some alternative alleles with detrimental effects exist in significant proportions in populations,the condition is called

Correct AnswerverifiedShow Answer

In humans,if a non-disjunction event led to an individual with a genotype of XO,they would

Correct AnswerverifiedShow Answer

Given that bw and hv are closely linked,which of the following phenotypic ratios can you expect to find in the F2 generation?

Correct AnswerverifiedShow Answer

Of the 23 pairs of human chromosomes,22 pairs are similar in the location of genes and are found in both males and females.These are called _________.

Correct AnswerverifiedShow Answer

Which of the following will help you distinguish between the two final suspects?

Correct AnswerverifiedShow Answer

If an XY individual had a genetic disorder in which they were insensitive to androgens,their genotype and phenotype would be

Correct AnswerverifiedShow Answer

Which of the following statements about calico cats is false?

Correct AnswerverifiedShow Answer

The most common condition of trisomy,in which three copies of a chromosome are present instead of the normal two,is of chromosome

Correct AnswerverifiedShow Answer

Amniocentesis is a procedure that is normally used

Correct AnswerverifiedShow Answer

How many Barr bodies does a normal human female contain in her cells?

Correct AnswerverifiedShow Answer

The clotting of blood depends upon a chain of reactions that involve many different proteins;a faulty gene for any one of these proteins gives rise to the disease called __________.

Correct AnswerverifiedShow Answer

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Given that bw and hv are closely linked,which of the following phenotypic ratios can you expect to find in the F₂ generation?

Correct Answer
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