Question 1

A defective protein called fibrillin can cause an individual to possess abnormal connective tissue. This is an inherited disorder called

Accepted Answer

A)   Marfan syndrome.
B)   Duchenne muscular dystrophy.
C)   alkaptonuria.
D)   methemoglobinemia.
E)   sickle cell disease.F) All of the above
G) B) and C)

Question 2

If a man has an X-linked recessive disorder, then his daughters

Accepted Answer

A)   will all have the disorder.
B)   cannot be a carrier for the disorder.
C)   cannot inherit the disease-causing allele.
D)   will not have the disorder.
E)   will be carriers for the disorder.F) A) and B)
G) D) and E)

Question 3

Which one of the following diseases or disorders has not been treated using gene therapy methods?

Accepted Answer

A)   rheumatoid arthritis
B)   familial hypercholesterolemia
C)   cri du chat syndrome
D)   sickle cell disease
E)   Duchenne muscular dystrophyF) A) and E)
G) C) and E)

Question 4

Which mode or modes of inheritance are possible for the pedigree shown here?

Accepted Answer

A)   autosomal dominant, autosomal recessive, or X-linked dominant
B)   autosomal recessive or X-linked recessive
C)   X-linked recessive
D)   autosomal dominant, autosomal recessive, or X-linked recessive
E)   autosomal dominant or X-linked dominantF) A) and E)
G) B) and E)

Question 5

A child can show a genetic disorder even if neither parent has the disorder.

Accepted Answer

A) True 
 B)False

Question 6

A mutation in a gene that causes the protein to acquire an abnormal activity, such as aggregating within the cell, will usually cause a dominant inherited disorder.

Accepted Answer

A) True 
 B)False

Question 7

A man and a woman both unaffected by an autosomal dominant trait have a child. What is the probability that the child will inherit the disorder?

Accepted Answer

A)   0%
B)   25%
C)   50%
D)   75%
E)   100%F) All of the above
G) B) and D)

Question 8

A missing piece of chromosome 5 may result in a child whose glottis and larynx do not develop properly resulting in an abnormal cry. This is called ________.

Accepted Answer

A)   Cri du chat syndrome
B)   Huntington syndrome
C)   Klinefelter syndrome
D)   inv dup 15 syndrome
E)   Down syndromeF) A) and B)
G) A) and E)

Question 9

Defective chloride ion channels in the plasma membrane cause thick mucus of tissues lining the airways and parts of the digestive system. This is an inherited disorder called ________.

Accepted Answer

A)   alkaptonuria
B)   cystic fibrosis
C)   sickle cell disease
D)   Tay-Sachs disease
E)   Huntington diseaseF) B) and E)
G) A) and E)

Question 10

When a chromosome carrying an inversion undergoes crossing-over,

Accepted Answer

A)   all four chromatids of the tetrad will contain a duplication or deletion.
B)   two chromatids will carry both a duplication and a deletion, one will contain the inversion, and one will be normal.
C)   two chromatids will carry both a duplication and a deletion, and the other two will contain the inversion.
D)   all four chromatids will be normal.
E)   two chromatids will carry the inversion, and the other two will be normal.F) B) and C)
G) B) and E)

Exam 13: Genetic Counseling

A defective protein called fibrillin can cause an individual to possess abnormal connective tissue. This is an inherited disorder called

Correct Answer
verified

When a chromosome carrying an inversion undergoes crossing-over,

Correct Answer
verified

A child can show a genetic disorder even if neither parent has the disorder.

Correct Answer
verified

A missing piece of chromosome 5 may result in a child whose glottis and larynx do not develop properly resulting in an abnormal cry. This is called ________.

Correct Answer
verified

A man and a woman both unaffected by an autosomal dominant trait have a child. What is the probability that the child will inherit the disorder?

Correct Answer
verified

Which one of the following diseases or disorders has not been treated using gene therapy methods?

Correct Answer
verified

A mutation in a gene that causes the protein to acquire an abnormal activity, such as aggregating within the cell, will usually cause a dominant inherited disorder.

Correct Answer
verified

If a man has an X-linked recessive disorder, then his daughters

Correct Answer
verified

Defective chloride ion channels in the plasma membrane cause thick mucus of tissues lining the airways and parts of the digestive system. This is an inherited disorder called ________.

Correct Answer
verified

Which mode or modes of inheritance are possible for the pedigree shown here?

Correct Answer
verified

Exam 13: Genetic Counseling

A defective protein called fibrillin can cause an individual to possess abnormal connective tissue. This is an inherited disorder called

Correct AnswerverifiedShow Answer

When a chromosome carrying an inversion undergoes crossing-over,

Correct AnswerverifiedShow Answer

A child can show a genetic disorder even if neither parent has the disorder.

Correct AnswerverifiedShow Answer

A missing piece of chromosome 5 may result in a child whose glottis and larynx do not develop properly resulting in an abnormal cry. This is called ________.

Correct AnswerverifiedShow Answer

A man and a woman both unaffected by an autosomal dominant trait have a child. What is the probability that the child will inherit the disorder?

Correct AnswerverifiedShow Answer

Which one of the following diseases or disorders has not been treated using gene therapy methods?

Correct AnswerverifiedShow Answer

A mutation in a gene that causes the protein to acquire an abnormal activity, such as aggregating within the cell, will usually cause a dominant inherited disorder.

Correct AnswerverifiedShow Answer

If a man has an X-linked recessive disorder, then his daughters

Correct AnswerverifiedShow Answer

Defective chloride ion channels in the plasma membrane cause thick mucus of tissues lining the airways and parts of the digestive system. This is an inherited disorder called ________.

Correct AnswerverifiedShow Answer

Which mode or modes of inheritance are possible for the pedigree shown here?

Correct AnswerverifiedShow Answer

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verified

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