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WGU D115 UNIT 2 EXAM QUESTIONS AND ANSWERS LATEST UPDATE QUESTIONS AND VERIFIED ANSWERS.pdf
WGU D115 UNIT 2 EXAM QUESTIONS AND ANSWERS LATEST UPDATE QUESTIONS AND VERIFIED ANSWERS.pdf
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WGU D115 UNIT 2 EXAM QUESTIONS AND ANSWERS (LATEST UPDATE 2023-2024 46 QUESTIONS AND VERIFIED ANSWERSWGU D115 UNIT 2 EXAM QUESTIONS AND ANSWERS
LATEST UPDATE 2023-2024 46 QUESTIONS AND
VERIFIED ANSWERS
Which type of genetic disease affects males more frequently than females?
Sex-linked recessive
Autosomal recessive
Autosomal dominant
Sex-linked dominant - correct answers ✅Sex-Linked recessive. Since males
only have one X and one Y, if the affected chromosome has the illness, it will
be expressed.
In which two conditions are chromosomal abnormalities the leading known
cause?
Intellectual disability
Respiratory disorders
Fetal miscarriage
Cardiovascular disease
Mental illness
, WGU D115 UNIT 2 EXAM QUESTIONS AND ANSWERS (LATEST UPDATE 2023-2024 46 QUESTIONS AND VERIFIED ANSWERS
Check My Answer - correct answers ✅Intellectual disability and fetal
miscarriage. Chromosome abnormalities are the leading known cause of
intellectual disability and fetal miscarriage.
What are three examples of prenatal diagnostic studies?
Drug-sensitivity testing
Chorionic villus sampling (CVS)
Microscopy of cervical mucosa
Preimplantation genetic testing (PGT)
Amniocentesis - correct answers ✅Chorionic villus sampling (CVS),
amniocentesis, and preimplantation genetic testing (PGT) are examples of
prenatal diagnostic studies and are performed in vitro. CVS is a form of
genetic testing that provides genetic information found in utero and is
usually performed between weeks 11 and 14 of pregnancy. An
amniocentesis is a form of genetic testing that evaluates amniotic fluid and is
usually performed during the second trimester, between weeks 15 and 20 of
pregnancy. PGT is performed on the embryo prior to implantation.
Which genetic disorder is characterized by the presence of a zygote having
one chromosome with a normal complement of genes and one chromosome
with a missing gene?
, WGU D115 UNIT 2 EXAM QUESTIONS AND ANSWERS (LATEST UPDATE 2023-2024 46 QUESTIONS AND VERIFIED ANSWERS
Klinefelter syndrome
Down syndrome
Cri du chat syndrome
Turner syndrome - correct answers ✅Cri du chat syndrome (translated as
"cry of the cat") is caused by a DNA deletion. This term describes the cry
often heard from a baby affected by the syndrome. Cri du chat syndrome can
present as a microcephalic, low birth-weight baby with a piercing cry.
How can an X-linked recessive disease skip generations?
Mothers cannot pass X-linked genes to their sons.
Females are hemizygous for the X chromosome.
The disease can be transmitted through female carriers.
These diseases need only one copy of the gene in females. - correct answers
✅The disease can be transmitted through female carriers.
Since females have two copies of the X chromosome, the mother may
provide an unaffected X to a daughter or son. Furthermore, a daughter may
not show signs of the disease because she has the other X (the only X the
father can give to a female) to cancel it out.
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