NSC 408 Final Exam Review Questions
and Answers | Fall 2025/26 Update |
100% Correct
Which of the following is a factor that helps determine the effect of a given
nutrient in our bodies?
Dosage (how much is consumed)
Nutrient timing (when the nutrient is consumed)
Genotype (mutations/polymorphisms)
Co-exposure (other environmental factors that can interact with the
nutrient) - 🧠 ANSWER ✔✔All of the above
,What does the Agouti mouse experiment demonstrate? - 🧠 ANSWER
✔✔Maternal diet during gestation has a profound effect on the phenotype
of the offspring
Based on your knowledge of the folate-methionine pathway, which of the
following would likely affect breast cancer risk due to altered DNA
methylation patterns?
Increased dietary exposure to intermediates of this pathway (folate,
methionine, zinc, etc.)
A polymorphism in MTHFR, the rate-limiting enzyme in this pathway
Increased FOL-1 (folate receptor) expression - 🧠 ANSWER ✔✔All of the
above
What is most likely the largest provider of carbons for gluconeogenesis in
the absence of glucose? - 🧠 ANSWER ✔✔Amino acids
By which process is an amino group removed from an amino acid and
placed onto an alpha-keto acid, creating a new amino acid and a new
alpha-keto acid? - 🧠 ANSWER ✔✔Transamination
, Based on your knowledge of the metabolic pathways of glucose, amino
acids, and fats, which would most likely be elevated in a patient with a non-
functioning pyruvate carboxylase (PC) enzyme? - 🧠 ANSWER ✔✔Blood
alanine, blood lactate, ketone bodies
Our bodies produce a vastly greater amount of proteins than the number of
genes we have, even though our genes encode for these proteins. Which
of the following is *NOT* a method by which this occurs?
Posttranslational modification of proteins changes protein shape and
function.
Alternate splicing (splice variants) of RNA during transcription yields distinct
proteins.
Backward transcription of genes yields proteins with opposite effects.
Alternate transcription start sites results in different proteins from the same
gene. - 🧠 ANSWER ✔✔Backward transcription of genes yields proteins with
opposite effects.
Why didn't the completion of the human genome project give us the
answers to curing all diseases? - 🧠 ANSWER ✔✔The vast majority of
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
and Answers | Fall 2025/26 Update |
100% Correct
Which of the following is a factor that helps determine the effect of a given
nutrient in our bodies?
Dosage (how much is consumed)
Nutrient timing (when the nutrient is consumed)
Genotype (mutations/polymorphisms)
Co-exposure (other environmental factors that can interact with the
nutrient) - 🧠 ANSWER ✔✔All of the above
,What does the Agouti mouse experiment demonstrate? - 🧠 ANSWER
✔✔Maternal diet during gestation has a profound effect on the phenotype
of the offspring
Based on your knowledge of the folate-methionine pathway, which of the
following would likely affect breast cancer risk due to altered DNA
methylation patterns?
Increased dietary exposure to intermediates of this pathway (folate,
methionine, zinc, etc.)
A polymorphism in MTHFR, the rate-limiting enzyme in this pathway
Increased FOL-1 (folate receptor) expression - 🧠 ANSWER ✔✔All of the
above
What is most likely the largest provider of carbons for gluconeogenesis in
the absence of glucose? - 🧠 ANSWER ✔✔Amino acids
By which process is an amino group removed from an amino acid and
placed onto an alpha-keto acid, creating a new amino acid and a new
alpha-keto acid? - 🧠 ANSWER ✔✔Transamination
, Based on your knowledge of the metabolic pathways of glucose, amino
acids, and fats, which would most likely be elevated in a patient with a non-
functioning pyruvate carboxylase (PC) enzyme? - 🧠 ANSWER ✔✔Blood
alanine, blood lactate, ketone bodies
Our bodies produce a vastly greater amount of proteins than the number of
genes we have, even though our genes encode for these proteins. Which
of the following is *NOT* a method by which this occurs?
Posttranslational modification of proteins changes protein shape and
function.
Alternate splicing (splice variants) of RNA during transcription yields distinct
proteins.
Backward transcription of genes yields proteins with opposite effects.
Alternate transcription start sites results in different proteins from the same
gene. - 🧠 ANSWER ✔✔Backward transcription of genes yields proteins with
opposite effects.
Why didn't the completion of the human genome project give us the
answers to curing all diseases? - 🧠 ANSWER ✔✔The vast majority of
COPYRIGHT©PROFFKERRYMARTIN 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
