NSG5003 Week 3 Quiz
Inserting bone marrow cells into an individual who produces abnormal erythrocytes is
an example of what type of therapy? - answer Somatic cell
DNA replication requires the enzyme DNA polymerase to: - answer Travel along the
single DNA strand, adding the correct nucleotide to the new strand
Transcription is best defined as a process by which: - answer RNA is synthesized from
a DNA template.
The purpose of a staining technique of chromosomes such as Giemsa is to: - answer
Allow for the numbering of chromosomes and the identification of variations.
An amniocentesis indicates a neural tube defect when an increase in which protein is
evident? - answerAlpha fetoprotein
An amniocentesis is recommended for pregnant women who: - answerHave a family
history of genetic disorders
The most clinically useful technique for prenatal diagnosis of chromosomal
abnormalities at 3 months' (12 weeks') gestation is: - answerChorionic villus sampling
The term for an error in which homologous chromosomes fail to separate during meiosis
or mitosis is: - answerNondisjunction
Which clinical manifestations would be expected for a child who has complete trisomy of
the twenty-first chromosome? - answerAn IQ of 25 to 70, low nasal bridge, protruding
tongue, and flat, low-set ears
What is the most common cause of Down syndrome? - answerMaternal nondisjunction
What syndrome, characterized by an absent homologous X chromosome with only a
single X chromosome, exhibits features that include a short stature, widely spaced
nipples, and webbed neck? - answerCri du chat
A person with 47, XXY karyotype has the genetic disorder resulting in which syndrome?
- answerKlinefelter
What is the chromosomal variation that causes Klinefelter syndrome? -
answerNondisjunction of X chromosome in the mother
, What is the second most commonly recognized genetic cause of mental retardation? -
answerFragile X syndrome
What is the blood type of a person who is heterozygous, having A and B alleles as
codominant? - answerAB
A couple has two children diagnosed with an autosomal dominant genetic disease.
What is the probability that the next child will have the same genetic disease? -
answerOne half
When a child inherits a disease that is autosomal recessive, it is inherited from: -
answerBoth parents
People diagnosed with neurofibromatosis have varying degrees of the condition
because of the genetic principle of: - answerExpressivity
Which genetic disease has been linked to a mutation of the tumor-suppressor gene? -
answerRetinoblastoma
Cystic fibrosis is caused by what type of gene? - answerAutosomal recessive
Which is an important criterion for discerning autosomal recessive inheritance? -
answerConsanguinity is sometimes present.
Consanguinity refers to the mating of persons: - answerHaving common family relations
Males, having only one X chromosome (as is expected), are said to be: -
answerHemizygous
Males are more often affected by which type of genetic disease? - answerSex-linked
recessive
An X-linked recessive disease can skip generations because: - answerThe disease can
be transmitted through female carriers.
The presence of a zygote having one chromosome with the normal complement of
genes and one with a missing gene is characteristic of which genetic disorder? -
answerCri du chat
A child with which genetic disorder has a characteristic cry? - answerCri du chat
Which statement is true regarding X-linked recessive conditions? - answerThese
conditions are passed from affected father to all of his female children.
DNA formation occurs in which of the cell's structures? - answerNucleus
Inserting bone marrow cells into an individual who produces abnormal erythrocytes is
an example of what type of therapy? - answer Somatic cell
DNA replication requires the enzyme DNA polymerase to: - answer Travel along the
single DNA strand, adding the correct nucleotide to the new strand
Transcription is best defined as a process by which: - answer RNA is synthesized from
a DNA template.
The purpose of a staining technique of chromosomes such as Giemsa is to: - answer
Allow for the numbering of chromosomes and the identification of variations.
An amniocentesis indicates a neural tube defect when an increase in which protein is
evident? - answerAlpha fetoprotein
An amniocentesis is recommended for pregnant women who: - answerHave a family
history of genetic disorders
The most clinically useful technique for prenatal diagnosis of chromosomal
abnormalities at 3 months' (12 weeks') gestation is: - answerChorionic villus sampling
The term for an error in which homologous chromosomes fail to separate during meiosis
or mitosis is: - answerNondisjunction
Which clinical manifestations would be expected for a child who has complete trisomy of
the twenty-first chromosome? - answerAn IQ of 25 to 70, low nasal bridge, protruding
tongue, and flat, low-set ears
What is the most common cause of Down syndrome? - answerMaternal nondisjunction
What syndrome, characterized by an absent homologous X chromosome with only a
single X chromosome, exhibits features that include a short stature, widely spaced
nipples, and webbed neck? - answerCri du chat
A person with 47, XXY karyotype has the genetic disorder resulting in which syndrome?
- answerKlinefelter
What is the chromosomal variation that causes Klinefelter syndrome? -
answerNondisjunction of X chromosome in the mother
, What is the second most commonly recognized genetic cause of mental retardation? -
answerFragile X syndrome
What is the blood type of a person who is heterozygous, having A and B alleles as
codominant? - answerAB
A couple has two children diagnosed with an autosomal dominant genetic disease.
What is the probability that the next child will have the same genetic disease? -
answerOne half
When a child inherits a disease that is autosomal recessive, it is inherited from: -
answerBoth parents
People diagnosed with neurofibromatosis have varying degrees of the condition
because of the genetic principle of: - answerExpressivity
Which genetic disease has been linked to a mutation of the tumor-suppressor gene? -
answerRetinoblastoma
Cystic fibrosis is caused by what type of gene? - answerAutosomal recessive
Which is an important criterion for discerning autosomal recessive inheritance? -
answerConsanguinity is sometimes present.
Consanguinity refers to the mating of persons: - answerHaving common family relations
Males, having only one X chromosome (as is expected), are said to be: -
answerHemizygous
Males are more often affected by which type of genetic disease? - answerSex-linked
recessive
An X-linked recessive disease can skip generations because: - answerThe disease can
be transmitted through female carriers.
The presence of a zygote having one chromosome with the normal complement of
genes and one with a missing gene is characteristic of which genetic disorder? -
answerCri du chat
A child with which genetic disorder has a characteristic cry? - answerCri du chat
Which statement is true regarding X-linked recessive conditions? - answerThese
conditions are passed from affected father to all of his female children.
DNA formation occurs in which of the cell's structures? - answerNucleus
