WGU D115 UNIT 2 EXAM QUESTIONS AND ANSWERS (LATEST UPDATE ) (46 QUESTIONS) VERIFIED ANSWERS | COMPLETE GUIDE | GRADED A+

WGU D115 UNIT 2 EXAM QUESTIONS AND
ANSWERS (LATEST UPDATE 2024-2025) (46
QUESTIONS) VERIFIED ANSWERS | COMPLETE
GUIDE | GRADED A+




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

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
N N N N N N N N N N




of pregnancy. PGT is performed on the embryo prior to implantation.
N N N N N N N N N N N




Which genetic disorder is characterized by the presence of a zygote having
N N N N N N N N N N N




one chromosome with a normal complement of genes and one
N N N N N N N N N N




chromosome with a missing gene?
N N N N N




Klinefelter syndrome N




Down syndrome N




Cri du chat syndrome
N N N




Turner syndrome - correct answers ✅Cri du chat syndrome (translated as
N N N N N N N N N N




"cry of the cat") is caused by a DNA deletion. This term describes the cry
N N N N N N N N N N N N N N N




often heard from a baby affected by the syndrome. Cri du chat syndrome
N N N N N N N N N N N N N




can present as a microcephalic, low birth-weight baby with a piercing cry.
N N N N N N N N N N N N




How can an X-linked recessive disease skip generations?
N N N N N N N




Mothers cannot pass X-linked genes to their sons.
N N N N N N N




Females are hemizygous for the X chromosome.
N N N N N N




The disease can be transmitted through female carriers.
N N N N N N N