NSG5003 Week 3 exam questions and
complete detailed correct solutions
Somatic cell - answer ✔✔-Inserting bone marrow cells into an individual who produces
abnormal erythrocytes is an example of what type of therapy?
Travel along the single DNA strand, adding the correct nucleotide to the new strand - answer
✔✔-DNA replication requires the enzyme DNA polymerase to:
RNA is synthesized from a DNA template. - answer ✔✔-Transcription is best defined as a
process by which:
Allow for the numbering of chromosomes and the identification of variations. - answer ✔✔-The
purpose of a staining technique of chromosomes such as Giemsa is to:
Alpha fetoprotein - answer ✔✔-An amniocentesis indicates a neural tube defect when an
increase in which protein is evident?
Have a family history of genetic disorders - answer ✔✔-An amniocentesis is recommended for
pregnant women who:
Chorionic villus sampling - answer ✔✔-The most clinically useful technique for prenatal
diagnosis of chromosomal abnormalities at 3 months' (12 weeks') gestation is:
,Nondisjunction - answer ✔✔-The term for an error in which homologous chromosomes fail to
separate during meiosis or mitosis is:
An IQ of 25 to 70, low nasal bridge, protruding tongue, and flat, low-set ears - answer ✔✔-
Which clinical manifestations would be expected for a child who has complete trisomy of the
twenty-first chromosome?
Maternal nondisjunction - answer ✔✔-What is the most common cause of Down syndrome?
Cri du chat - answer ✔✔-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?
Klinefelter - answer ✔✔-A person with 47, XXY karyotype has the genetic disorder resulting in
which syndrome?
Nondisjunction of X chromosome in the mother - answer ✔✔-What is the chromosomal
variation that causes Klinefelter syndrome?
Fragile X syndrome - answer ✔✔-What is the second most commonly recognized genetic cause
of mental retardation?
AB - answer ✔✔-What is the blood type of a person who is heterozygous, having A and B alleles
as codominant?
One half - answer ✔✔-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?
Both parents - answer ✔✔-When a child inherits a disease that is autosomal recessive, it is
inherited from:
, Expressivity - answer ✔✔-People diagnosed with neurofibromatosis have varying degrees of the
condition because of the genetic principle of:
Retinoblastoma - answer ✔✔-Which genetic disease has been linked to a mutation of the
tumor-suppressor gene?
Autosomal recessive - answer ✔✔-Cystic fibrosis is caused by what type of gene?
Consanguinity is sometimes present. - answer ✔✔-Which is an important criterion for
discerning autosomal recessive inheritance?
Having common family relations - answer ✔✔-Consanguinity refers to the mating of persons:
Hemizygous - answer ✔✔-Males, having only one X chromosome (as is expected), are said to
be:
Sex-linked recessive - answer ✔✔-Males are more often affected by which type of genetic
disease?
The disease can be transmitted through female carriers. - answer ✔✔-An X-linked recessive
disease can skip generations because:
Cri du chat - answer ✔✔-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?
Cri du chat - answer ✔✔-A child with which genetic disorder has a characteristic cry?
complete detailed correct solutions
Somatic cell - answer ✔✔-Inserting bone marrow cells into an individual who produces
abnormal erythrocytes is an example of what type of therapy?
Travel along the single DNA strand, adding the correct nucleotide to the new strand - answer
✔✔-DNA replication requires the enzyme DNA polymerase to:
RNA is synthesized from a DNA template. - answer ✔✔-Transcription is best defined as a
process by which:
Allow for the numbering of chromosomes and the identification of variations. - answer ✔✔-The
purpose of a staining technique of chromosomes such as Giemsa is to:
Alpha fetoprotein - answer ✔✔-An amniocentesis indicates a neural tube defect when an
increase in which protein is evident?
Have a family history of genetic disorders - answer ✔✔-An amniocentesis is recommended for
pregnant women who:
Chorionic villus sampling - answer ✔✔-The most clinically useful technique for prenatal
diagnosis of chromosomal abnormalities at 3 months' (12 weeks') gestation is:
,Nondisjunction - answer ✔✔-The term for an error in which homologous chromosomes fail to
separate during meiosis or mitosis is:
An IQ of 25 to 70, low nasal bridge, protruding tongue, and flat, low-set ears - answer ✔✔-
Which clinical manifestations would be expected for a child who has complete trisomy of the
twenty-first chromosome?
Maternal nondisjunction - answer ✔✔-What is the most common cause of Down syndrome?
Cri du chat - answer ✔✔-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?
Klinefelter - answer ✔✔-A person with 47, XXY karyotype has the genetic disorder resulting in
which syndrome?
Nondisjunction of X chromosome in the mother - answer ✔✔-What is the chromosomal
variation that causes Klinefelter syndrome?
Fragile X syndrome - answer ✔✔-What is the second most commonly recognized genetic cause
of mental retardation?
AB - answer ✔✔-What is the blood type of a person who is heterozygous, having A and B alleles
as codominant?
One half - answer ✔✔-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?
Both parents - answer ✔✔-When a child inherits a disease that is autosomal recessive, it is
inherited from:
, Expressivity - answer ✔✔-People diagnosed with neurofibromatosis have varying degrees of the
condition because of the genetic principle of:
Retinoblastoma - answer ✔✔-Which genetic disease has been linked to a mutation of the
tumor-suppressor gene?
Autosomal recessive - answer ✔✔-Cystic fibrosis is caused by what type of gene?
Consanguinity is sometimes present. - answer ✔✔-Which is an important criterion for
discerning autosomal recessive inheritance?
Having common family relations - answer ✔✔-Consanguinity refers to the mating of persons:
Hemizygous - answer ✔✔-Males, having only one X chromosome (as is expected), are said to
be:
Sex-linked recessive - answer ✔✔-Males are more often affected by which type of genetic
disease?
The disease can be transmitted through female carriers. - answer ✔✔-An X-linked recessive
disease can skip generations because:
Cri du chat - answer ✔✔-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?
Cri du chat - answer ✔✔-A child with which genetic disorder has a characteristic cry?
