CHS 200 Final Exam UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Epigenetic modifications act through - CORRECT ANSWER It may affect the proteins that
surround and support DNA
What is the genetic cause of cystic fibrosis? - CORRECT ANSWER Mutated CTFR gene
What was the genetic disorder was implicated in the murder of the royal family of Russia? -
CORRECT ANSWER Hemophilia
Individuals who are heterozygous for a particular gene inherited identical alleles - CORRECT
ANSWER False
Treyvon constructed a pedigree for three generations of his family. He learned that his parents,
siblings, and grandparents all had heart-related diseases (high blood pressure, heart attacks, obesity).
What does this predict for Treyvon? - CORRECT ANSWER He has an increased risk of
developing a heart-related disease
BRCA mutation like what Emma Duncan had - CORRECT ANSWER Autosomal dominant
Match the disorder we discussed in class with the inheritance pattern - CORRECT
ANSWER Huntington's Disease: Autosomal dominant
Dwarfism: autosomal dominant
sickle cell anemia: autosomal recessive
color blindness: sex linked
hemophilia: sex linked
cystic fibrosis: autosomal recessive
hemmingways cat toes: variable expressivity
brittle bone disease: incomplete dominance
, Why is the range of estimates of FAS prevalence so wide with no national or concrete statistics? -
CORRECT ANSWER There is no active surveillance nor population based surveillance system
for FAS
Which of Hills Postulates would address that there is no safe dose (threshold) for alcohol while
pregnant? - CORRECT ANSWER Strength of Association
At what stage (in weeks) in a fetus's development did thalidomide affect? - CORRECT
ANSWER Weeks 5-6
Match time period with the correct term. Use time periods presented in course materials (they can
vary a little depending on source) - CORRECT ANSWER Zygote: 0-10days
Embryo: day 10-10 weeks
Fetus: 10 weeks-delivery
Neonate: after delivery
Viability: after 24 weeks
Induction: after 24 weeks
Start of pregnancy: up to 19 days
End of first trimester: 13 weeks
abortion: before 24 weeks
If many research studies come to the same conclusion, which of Hills postulate does this address? -
CORRECT ANSWER consistency
How does alcohol cause hypoxia? - CORRECT ANSWER impairs placental-fetal blood flow
Where in the female reproductive tract does alcohol disrupt cellular differentiation and DNA protein
synthesis? - CORRECT ANSWER placenta
Cocaine users and people who experience adverse childhood events have fewer dopamine receptors -
CORRECT ANSWER true
QUESTIONS AND CORRECT ANSWERS
Epigenetic modifications act through - CORRECT ANSWER It may affect the proteins that
surround and support DNA
What is the genetic cause of cystic fibrosis? - CORRECT ANSWER Mutated CTFR gene
What was the genetic disorder was implicated in the murder of the royal family of Russia? -
CORRECT ANSWER Hemophilia
Individuals who are heterozygous for a particular gene inherited identical alleles - CORRECT
ANSWER False
Treyvon constructed a pedigree for three generations of his family. He learned that his parents,
siblings, and grandparents all had heart-related diseases (high blood pressure, heart attacks, obesity).
What does this predict for Treyvon? - CORRECT ANSWER He has an increased risk of
developing a heart-related disease
BRCA mutation like what Emma Duncan had - CORRECT ANSWER Autosomal dominant
Match the disorder we discussed in class with the inheritance pattern - CORRECT
ANSWER Huntington's Disease: Autosomal dominant
Dwarfism: autosomal dominant
sickle cell anemia: autosomal recessive
color blindness: sex linked
hemophilia: sex linked
cystic fibrosis: autosomal recessive
hemmingways cat toes: variable expressivity
brittle bone disease: incomplete dominance
, Why is the range of estimates of FAS prevalence so wide with no national or concrete statistics? -
CORRECT ANSWER There is no active surveillance nor population based surveillance system
for FAS
Which of Hills Postulates would address that there is no safe dose (threshold) for alcohol while
pregnant? - CORRECT ANSWER Strength of Association
At what stage (in weeks) in a fetus's development did thalidomide affect? - CORRECT
ANSWER Weeks 5-6
Match time period with the correct term. Use time periods presented in course materials (they can
vary a little depending on source) - CORRECT ANSWER Zygote: 0-10days
Embryo: day 10-10 weeks
Fetus: 10 weeks-delivery
Neonate: after delivery
Viability: after 24 weeks
Induction: after 24 weeks
Start of pregnancy: up to 19 days
End of first trimester: 13 weeks
abortion: before 24 weeks
If many research studies come to the same conclusion, which of Hills postulate does this address? -
CORRECT ANSWER consistency
How does alcohol cause hypoxia? - CORRECT ANSWER impairs placental-fetal blood flow
Where in the female reproductive tract does alcohol disrupt cellular differentiation and DNA protein
synthesis? - CORRECT ANSWER placenta
Cocaine users and people who experience adverse childhood events have fewer dopamine receptors -
CORRECT ANSWER true
