Question 1

Individuals with three or more copies of each of their chromosomes are called ____. ​

Accepted Answer

A)  polyploids ​
B)  haploids
C)  aneuploids
D)  euploids
E)  diploids

Question 2

The presence of genes that encode many types of hemoglobin in mammals, but not in other vertebrates that evolved earlier, is evidence of ____ of genetic material. ​

Accepted Answer

A)  an inversion ​
B)  the duplication
C)  reciprocal translocation
D)  the deletion
E)  both duplication and deletion B

Question 3

Match between columns
                        Premises: achondroplasia

Accepted Answer

The Answer of aneuploidy and autosomal dominant  and autosomal is...

Question 4

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have hemophilia. The woman has an X-linked recessive form of hemophilia, but the man does not. How should you advise them?

Accepted Answer

A)  Half of their children will have hemophilia.. ​
B)  All of their sons and half of their daughters will have hemophilia.
C)  None of their children will have hemophilia, but all of their daughters will be carriers for hemophilia.
D)  Each of their sons will have a 50% chance of having hemophilia, and each of their daughters will have a 50% chance of being carriers.
E)  All of their sons will have hemophilia, and all of their daughters will be carriers.

Question 5

An autosome is a ____. ​

Accepted Answer

A)  chromosome other than a sex chromosome
B)  structure used to transport genetic material to the cytoplasm
C)  chromosome containing a group of genes involved in autoimmune disorders
D)  region of the DNA that is self-replicating
E)  cellular body involved in autoimmune disorders

Question 6

During normal human embryonic development, if ____, then the SRY gene switches development toward ____. ​

Accepted Answer

A)  a Y chromosome is present; maleness ​
B)  an X chromosome is present; femaleness
C)  two X chromosomes are present; femaleness
D)  the X chromosome is absent; maleness
E)  a Y chromosome is present; femaleness

Question 7

Genetic studies of an animal show that eye color is controlled by an autosomal gene with the dominant allele ( R ) for red eye color and the recessive allele ( r ) for yellow eye color. A second autosomal gene has the dominant allele ( T ) for paws with thumbs and the recessive allele ( t ) for paws without thumbs. The genetic cross RRTT x rrtt creates offspring with genotype RrTt . One of those dihybrids is mated in a testcross ( RrTt x rrtt ) . Based on the principle of independent assortment, the testcross should produce offspring with the phenotype ratio ____.

Accepted Answer

A)  3 red-eyed with thumbs : 1 yellow-eyed without thumbs ​
B)  1 red-eyed with thumbs : 1 yellow-eyed with thumbs: 1 red-eyed without thumbs: 1 yellow-eyed without thumbs
C)  1 red-eyed with thumbs : 1 yellow-eyed without thumbs
D)  9 red-eyed with thumbs : 3 yellow-eyed with thumbs: 3 red-eyed without thumbs: 1 yellow-eyed without thumbs
E)  3 yellow-eyed with thumbs : 1 red-eyed without thumbs

Question 8

About 4% of individuals of Northern European descent are carriers for ____, an autosomal recessive genetic disorder in which a defective membrane transport protein leads to deficient chloride levels in extracellular fluids. ​

Accepted Answer

A)  Duchenne muscular dystrophy ​
B)  phenylketonuria
C)  achondroplasia
D)  sickle-cell anemia
E)  cystic fibrosis

Question 9

Figure 13.4
The change in the chromosome depicted between the top and the bottom in the accompanying figure represents a(n) ____.

Accepted Answer

A)  inversion
B)  duplication
C)  reciprocal translocation
D)  deletion
E)  Philadelphia chromosome

Question 10

Match between columns
                        Premises: Duchenne muscular dystrophy

Accepted Answer

The Answer of autosomal recessive and X-linked recessive and X-linked is...

Question 11

Match between columns
                        Premises: red-green colorblindness

Accepted Answer

The Answer of X-linked dominant and autosomal dominant  and is...

Question 12

Most hospitals in the United States routinely test all newborns for ____, an autosomal recessive disorder in which a metabolic abnormality causes a buildup of compounds that damage brain tissue and can lead to mental retardation unless a restricted diet is followed.

Accepted Answer

A)  Duchenne muscular dystrophy ​
B)  phenylketonuria
C)  achondroplasia
D)  sickle-cell anemia
E)  cystic fibrosis

Question 13

Chemical compounds released during tobacco use can cause ____.

Accepted Answer

A)  sickle-cell anemia ​
B)  color blindness
C)  cancer
D)  cystic fibrosis
E)  hemophilia

Question 14

If a hypothetical human female of genotype XX had no Barr body in any of her cells, ---____. ​

Accepted Answer

A)  she would be phenotypically male
B)  she would be considered triploid
C)  the genes on both X chromosomes would be expressed ​
D)  she would have Turner syndrome
E)  she would have a Y chromosome

Question 15

In humans, an extra copy of chromosome 21 typically leads to moderate to severe mental retardation and sterility, as well as to a greater likelihood of heart defects and other problems. This disorder is known as ____.

Accepted Answer

A)  Turner syndrome ​
B)  Down syndrome
C)  cri-du-chat
D)  Triple-X syndrome
E)  Klinefelter syndrome

Question 16

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have hemophilia. Neither of them has hemophilia, but the woman's biological father did have an X-linked recessive form of hemophilia. How should you advise them? ​

Accepted Answer

A)  Half of their children will have hemophilia.
B)  All of their sons and half of their daughters will have hemophilia.
C)  None of their children will have hemophilia, but all of their daughters will be carriers for hemophilia.
D)  Each of their sons will have a 50% chance of having hemophilia, and each of their daughters will have a 50% chance of being carriers.
E)  All of their sons will have hemophilia, and all of their daughters will be carriers.

Question 17

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have cystic fibrosis. Genetic tests reveal that the woman is a carrier for cystic fibrosis but the man is not. How should you advise them? ​

Accepted Answer

A)  Half of their children will have cystic fibrosis, and the other half will be carriers. ​
B)  All of their children will have cystic fibrosis.
C)  There are no concerns, because none of their offspring have a chance of inheriting the cystic fibrosis allele.
D)  While none of their children will have cystic fibrosis, each child will have a 50% chance of being a carrier.
E)  All of their children will have a 25% chance of having cystic fibrosis.

Question 18

Suppose that you have discovered a new mutant in Drosophila melanogaster . The trait is known to be sex linked. Which crosses should you perform to determine if the mutant trait is recessive or dominant?

Accepted Answer

You should do the following crosses:
Cr...

Question 19

About 10-15% of African Americans in the US are carriers for ____, an autosomal recessive genetic disorder in which a defective version of the hemoglobin protein is produced. ​

Accepted Answer

A)  Duchenne muscular dystrophy ​
B)  phenylketonuria
C)  achondroplasia
D)  sickle-cell anemia
E)  cystic fibrosis D

Question 20

Match between columns
                        Premises: hereditary enamel hydroplasia

Accepted Answer

The Answer of X-linked dominant and autosomal dominant  and is...

Exam 13: Genes, Chromosomes, and Human Genetics

Individuals with three or more copies of each of their chromosomes are called ____.

Correct Answer
verified

The presence of genes that encode many types of hemoglobin in mammals, but not in other vertebrates that evolved earlier, is evidence of ____ of genetic material.

Correct Answer
verified
B

Choose the mode of inheritance that has been determined for each of the following genetic conditions in humans. Some choices may be used more than once.

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have hemophilia. The woman has an X-linked recessive form of hemophilia, but the man does not. How should you advise them?

Correct Answer
verified

An autosome is a ____.

Correct Answer
verified

During normal human embryonic development, if , then the SRY gene switches development toward .

Correct Answer
verified

Correct Answer
verified

About 4% of individuals of Northern European descent are carriers for ____, an autosomal recessive genetic disorder in which a defective membrane transport protein leads to deficient chloride levels in extracellular fluids.

Correct Answer
verified

Figure 13.4 The change in the chromosome depicted between the top and the bottom in the accompanying figure represents a(n) ____.

Correct Answer
verified

Choose the mode of inheritance that has been determined for each of the following genetic conditions in humans. Some choices may be used more than once.

Choose the mode of inheritance that has been determined for each of the following genetic conditions in humans. Some choices may be used more than once.

Most hospitals in the United States routinely test all newborns for ____, an autosomal recessive disorder in which a metabolic abnormality causes a buildup of compounds that damage brain tissue and can lead to mental retardation unless a restricted diet is followed.

Correct Answer
verified

Chemical compounds released during tobacco use can cause ____.

Correct Answer
verified

If a hypothetical human female of genotype XX had no Barr body in any of her cells, ---____.

Correct Answer
verified

In humans, an extra copy of chromosome 21 typically leads to moderate to severe mental retardation and sterility, as well as to a greater likelihood of heart defects and other problems. This disorder is known as ____.

Correct Answer
verified

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have hemophilia. Neither of them has hemophilia, but the woman's biological father did have an X-linked recessive form of hemophilia. How should you advise them?

Correct Answer
verified

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have cystic fibrosis. Genetic tests reveal that the woman is a carrier for cystic fibrosis but the man is not. How should you advise them?

Correct Answer
verified

Suppose that you have discovered a new mutant in Drosophila melanogaster . The trait is known to be sex linked. Which crosses should you perform to determine if the mutant trait is recessive or dominant?

Correct Answer
verified
You should do the following crosses:
Cr...
View Answer

About 10-15% of African Americans in the US are carriers for ____, an autosomal recessive genetic disorder in which a defective version of the hemoglobin protein is produced.

Correct Answer
verified
D

Choose the mode of inheritance that has been determined for each of the following genetic conditions in humans. Some choices may be used more than once.

Exam 13: Genes, Chromosomes, and Human Genetics

Individuals with three or more copies of each of their chromosomes are called ____. ​

Correct AnswerverifiedShow Answer

The presence of genes that encode many types of hemoglobin in mammals, but not in other vertebrates that evolved earlier, is evidence of ____ of genetic material. ​

Correct AnswerverifiedB

Choose the mode of inheritance that has been determined for each of the following genetic conditions in humans. Some choices may be used more than once.

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have hemophilia. The woman has an X-linked recessive form of hemophilia, but the man does not. How should you advise them?

Correct AnswerverifiedShow Answer

An autosome is a ____. ​

Correct AnswerverifiedShow Answer

During normal human embryonic development, if ____, then the SRY gene switches development toward ____. ​

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

About 4% of individuals of Northern European descent are carriers for ____, an autosomal recessive genetic disorder in which a defective membrane transport protein leads to deficient chloride levels in extracellular fluids. ​

Correct AnswerverifiedShow Answer

Figure 13.4 The change in the chromosome depicted between the top and the bottom in the accompanying figure represents a(n) ____.

Correct AnswerverifiedShow Answer

Choose the mode of inheritance that has been determined for each of the following genetic conditions in humans. Some choices may be used more than once.

Choose the mode of inheritance that has been determined for each of the following genetic conditions in humans. Some choices may be used more than once.

Most hospitals in the United States routinely test all newborns for ____, an autosomal recessive disorder in which a metabolic abnormality causes a buildup of compounds that damage brain tissue and can lead to mental retardation unless a restricted diet is followed.

Correct AnswerverifiedShow Answer

Chemical compounds released during tobacco use can cause ____.

Correct AnswerverifiedShow Answer

If a hypothetical human female of genotype XX had no Barr body in any of her cells, ---____. ​

Correct AnswerverifiedShow Answer

In humans, an extra copy of chromosome 21 typically leads to moderate to severe mental retardation and sterility, as well as to a greater likelihood of heart defects and other problems. This disorder is known as ____.

Correct AnswerverifiedShow Answer

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have hemophilia. Neither of them has hemophilia, but the woman's biological father did have an X-linked recessive form of hemophilia. How should you advise them? ​

Correct AnswerverifiedShow Answer

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have cystic fibrosis. Genetic tests reveal that the woman is a carrier for cystic fibrosis but the man is not. How should you advise them? ​

Correct AnswerverifiedShow Answer

Suppose that you have discovered a new mutant in Drosophila melanogaster . The trait is known to be sex linked. Which crosses should you perform to determine if the mutant trait is recessive or dominant?

Correct AnswerverifiedYou should do the following crosses: Cr...View AnswerShow Answer

About 10-15% of African Americans in the US are carriers for ____, an autosomal recessive genetic disorder in which a defective version of the hemoglobin protein is produced. ​

Correct AnswerverifiedD

Choose the mode of inheritance that has been determined for each of the following genetic conditions in humans. Some choices may be used more than once.

Individuals with three or more copies of each of their chromosomes are called ____.

Correct Answer
verified

The presence of genes that encode many types of hemoglobin in mammals, but not in other vertebrates that evolved earlier, is evidence of ____ of genetic material.

Correct Answer
verified
B

Correct Answer
verified

An autosome is a ____.

Correct Answer
verified

During normal human embryonic development, if , then the SRY gene switches development toward .

Correct Answer
verified

Correct Answer
verified

About 4% of individuals of Northern European descent are carriers for ____, an autosomal recessive genetic disorder in which a defective membrane transport protein leads to deficient chloride levels in extracellular fluids.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

If a hypothetical human female of genotype XX had no Barr body in any of her cells, ---____.

Correct Answer
verified

Correct Answer
verified

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have hemophilia. Neither of them has hemophilia, but the woman's biological father did have an X-linked recessive form of hemophilia. How should you advise them?

Correct Answer
verified

You are a genetic counselor, and a couple comes to you with concerns that if they have a child together, he or she could have cystic fibrosis. Genetic tests reveal that the woman is a carrier for cystic fibrosis but the man is not. How should you advise them?

Correct Answer
verified

Correct Answer
verified
You should do the following crosses:
Cr...
View Answer

About 10-15% of African Americans in the US are carriers for ____, an autosomal recessive genetic disorder in which a defective version of the hemoglobin protein is produced.

Correct Answer
verified
D