Question 1

A female that has ovarian failure and does not undergo puberty may have

Accepted Answer

A)   Klinefelter syndrome.
B)   Down syndrome.
C)   cri du chat syndrome.
D)   Turner syndrome.
E)   poly-X female state.F) A) and C)
G) A) and B)

Question 2

Which of the following is true about a karyotype?

Accepted Answer

A)   homologous chromosomes are arranged in pairs
B)   sex chromosomes are identified separately from autosomes
C)   chromosome pairs are assorted by both size and shape
D)   banding patterns are used in pairing chromosomes
E)   All of the answer choices are true about karyotypes.F) A) and B)
G) C) and E)

Question 3

Which statement is true regarding a Barr body?

Accepted Answer

A)   Barr bodies are found in the nuclei of female cells.
B)   Barr bodies are found in the nuclei of male cells.
C)   Barr bodies are found in the cytoplasm of male cells.
D)   Barr bodies are found in the cytoplasm of female cells.
E)   A Barr body is a condensed, inactive Y chromosome.F) A) and D)
G) C) and D)

Question 4

A mother is a carrier for blue eyes (autosomal recessive)  and for hemophilia (X-linked recessive) . Which of these is a correct statement?

Accepted Answer

A)   All sons will have blue eyes and be hemophiliacs.
B)   The phenotype depends on the father's genotype as to whether the sons will have blue eyes and/or be hemophiliacs.
C)   The father's genotype can determine whether a son has blue eyes but will not determine whether a son will be a hemophiliac.
D)   Regardless of the father, no sons will have blue eyes or be hemophiliacs.
E)   Regardless of the father, the mother can only pass on blue eyes to her daughters and hemophilia to her sons.F) A) and B)
G) A) and C)

Question 5

Color-blindness is inherited as an X-linked recessive trait. A male who is color-blind marries a heterozygous woman. What percent of their total children will be color-blind?

Accepted Answer

A)   0%
B)   25%
C)   50%
D)   75%
E)   100%F) C) and E)
G) C) and D)

Question 6

An XXX female would most likely result from nondisjunction in

Accepted Answer

A)   the mother during egg formation.
B)   the father during sperm formation.
C)   in both the mother and father during gamete formation.
D)   the fertilized egg.
E)   neither the mother nor the father.F) B) and E)
G) C) and E)

Question 7

A karyotype will detect which of the following genetic diseases?

Accepted Answer

A)   Turner syndrome
B)   Klinefelter syndrome
C)   Down syndrome
D)   cri du chat syndrome
E)   All of the answer choices listed can be detected with a karyotype.F) None of the above
G) B) and D)

Question 8

When homologous chromosomes fail to separate during meiosis, this is termed

Accepted Answer

A)   linked genes.
B)   disjunction.
C)   nondisjunction.
D)   crossover.
E)   monosomy.F) B) and D)
G) B) and C)

Question 9

Which disorder is characterized by a lack of the protein dystrophin?

Accepted Answer

A)   hemophilia
B)   color-blindness
C)   muscular dystrophy
D)   Down syndrome
E)   cystic fibrosisF) C) and D)
G) A) and B)

Question 10

Describe a genetic disorder associated with a deletion in a chromosome.

Accepted Answer

Williams syndrome occurs when chromosome...

Question 11

Which of the following refers to the movement of a piece of one chromosome to another nonhomologous chromosome?

Accepted Answer

A)   inversion
B)   translocation
C)   deletion
D)   duplication
E)   monosomyF) A) and D)
G) A) and C)

Question 12

A color-blind (recessive trait)  woman will pass the allele to

Accepted Answer

A)   her sons only.
B)   all her children.
C)   her daughters only.
D)   none of her children.
E)   her husband.F) A) and D)
G) B) and E)

Question 13

Which of the following traits is part of the linkage group found on chromosome 19?

Accepted Answer

A)   muscular dystrophy
B)   hair color (brown) 
C)   colorectal cancer
D)   eye color (green/blue) 
E)   All of the answer choices are part of a linkage group on chromosome 19.F) A) and B)
G) A) and C)

Exam 24: Chromosomal Basis of Inheritance

When homologous chromosomes fail to separate during meiosis, this is termed

Correct Answer
verified

A color-blind (recessive trait) woman will pass the allele to

Correct Answer
verified

A female that has ovarian failure and does not undergo puberty may have

Correct Answer
verified

Which of the following refers to the movement of a piece of one chromosome to another nonhomologous chromosome?

Correct Answer
verified

Which disorder is characterized by a lack of the protein dystrophin?

Correct Answer
verified

An XXX female would most likely result from nondisjunction in

Correct Answer
verified

Color-blindness is inherited as an X-linked recessive trait. A male who is color-blind marries a heterozygous woman. What percent of their total children will be color-blind?

Correct Answer
verified

Which of the following is true about a karyotype?

Correct Answer
verified

Which of the following traits is part of the linkage group found on chromosome 19?

Correct Answer
verified

Describe a genetic disorder associated with a deletion in a chromosome.

Correct Answer
verified
Williams syndrome occurs when chromosome...
View Answer

Which statement is true regarding a Barr body?

Correct Answer
verified

A mother is a carrier for blue eyes (autosomal recessive) and for hemophilia (X-linked recessive) . Which of these is a correct statement?

Correct Answer
verified

A karyotype will detect which of the following genetic diseases?

Correct Answer
verified

Exam 24: Chromosomal Basis of Inheritance

When homologous chromosomes fail to separate during meiosis, this is termed

Correct AnswerverifiedShow Answer

A color-blind (recessive trait) woman will pass the allele to

Correct AnswerverifiedShow Answer

A female that has ovarian failure and does not undergo puberty may have

Correct AnswerverifiedShow Answer

Which of the following refers to the movement of a piece of one chromosome to another nonhomologous chromosome?

Correct AnswerverifiedShow Answer

Which disorder is characterized by a lack of the protein dystrophin?

Correct AnswerverifiedShow Answer

An XXX female would most likely result from nondisjunction in

Correct AnswerverifiedShow Answer

Color-blindness is inherited as an X-linked recessive trait. A male who is color-blind marries a heterozygous woman. What percent of their total children will be color-blind?

Correct AnswerverifiedShow Answer

Which of the following is true about a karyotype?

Correct AnswerverifiedShow Answer

Which of the following traits is part of the linkage group found on chromosome 19?

Correct AnswerverifiedShow Answer

Describe a genetic disorder associated with a deletion in a chromosome.

Correct AnswerverifiedWilliams syndrome occurs when chromosome...View AnswerShow Answer

Which statement is true regarding a Barr body?

Correct AnswerverifiedShow Answer

A mother is a carrier for blue eyes (autosomal recessive) and for hemophilia (X-linked recessive) . Which of these is a correct statement?

Correct AnswerverifiedShow Answer

A karyotype will detect which of the following genetic diseases?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Williams syndrome occurs when chromosome...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified