ANSC 3270 Midterm 2 Exam Questions
With Correct Answers
CanWest DHI does NOT offer diagnostic milk testing for which bovine
| | | | | | | | | | |
disease
a. Johne's disease
| |
b. Leukosis
|
c. Mastitis
|
d. Tuberculosis - CORRECT ANSWER✔✔-d
| | | |
Which of the following WILL help reduce emerging infectious disease?
| | | | | | | | |
a. Purchasing replacement ewes from a stock yard
| | | | | | |
b. On-farm signage for sanitation procedures
| | | | |
c. Placing newly purchased breeding ewes in quarantine for 2 days
| | | | | | | | | |
d. All of the above
| | | |
e. None of the above - CORRECT ANSWER✔✔-b
| | | | | | |
Which will NOT reduce the spread of mastitis within a herd?
| | | | | | | | | |
a. disinfecting boot washes at transition points
| | | | | |
b. Milking Staphylococcus positive cows first during herd milking
| | | | | | | |
,c. Implementing a pest control program within the milk parlour
| | | | | | | | |
d. All of the above
| | | |
e. None of the above - CORRECT ANSWER✔✔-b
| | | | | | |
Which reasons provides rationale for using genetic selection to improve
| | | | | | | | | |
disease resistance in livestock?
| | |
a. Little variation in disease phenotype within animal population
| | | | | | | |
b. Improvement is temporary so there's no long-term effect
| | | | | | | |
c. Can induce selection pressure on pathogen of interest to become
| | | | | | | | | | |
more virulent
|
d. Vaccine can't be used to prevent the disease since diagnosis is based
| | | | | | | | | | | | |
on host antibody response - CORRECT ANSWER✔✔-d
| | | | | |
Which does NOT explain why breeders have made huge genetic gains
| | | | | | | | | | |
for production traits but not health traits?
| | | | | |
a. Heritability estimates are lower for production traits
| | | | | | |
b. Production traits are monogenic while health traits are polygenic
| | | | | | | | |
c. It's easier to measure production traits
| | | | | |
d. These traits are inversely correlated - CORRECT ANSWER✔✔-a
| | | | | | | |
Which explains why SNPs have become the preferred genetic marker of
| | | | | | | | | | |
choice?
, a. Occur infrequently within genome
| | | |
b. All SNPs are non-synonymous
| | | |
c. Are typically bi-allelic
| | |
d. All of the above
| | | |
e. None of the above - CORRECT ANSWER✔✔-c
| | | | | | |
What is the advantage of this SNP phenomenon?
| | | | | | |
A. It allows for high throughput genotyping of animals
| | | | | | | | |
b. Alters 3D shape or function of protein
| | | | | | |
c. Don't alter 3D shape or function of protein
| | | | | | | |
d. Low frequency makes genotyping very cost-effective - CORRECT
| | | | | | | | |
ANSWER✔✔-a
You've been given the last of assessing the impact of sow stress during
| | | | | | | | | | | | |
pregnancy on passive immunity to piglets. Which would be the best
| | | | | | | | | | |
antigen for inclusion in a vaccine administered to the sow to assess
| | | | | | | | | | | |
passive transfer of antigen specific IgG to piglets after birth?
| | | | | | | | |
a. 30,000 Da chicken-specific lipid
| | | |
b. 50,000 DA porcine-specific protein
| | | |
c. 900 Da chicken-specific protein
| | | |
d. 10,000 Da fish-specific protein - CORRECT ANSWER✔✔-d
| | | | | | |
With Correct Answers
CanWest DHI does NOT offer diagnostic milk testing for which bovine
| | | | | | | | | | |
disease
a. Johne's disease
| |
b. Leukosis
|
c. Mastitis
|
d. Tuberculosis - CORRECT ANSWER✔✔-d
| | | |
Which of the following WILL help reduce emerging infectious disease?
| | | | | | | | |
a. Purchasing replacement ewes from a stock yard
| | | | | | |
b. On-farm signage for sanitation procedures
| | | | |
c. Placing newly purchased breeding ewes in quarantine for 2 days
| | | | | | | | | |
d. All of the above
| | | |
e. None of the above - CORRECT ANSWER✔✔-b
| | | | | | |
Which will NOT reduce the spread of mastitis within a herd?
| | | | | | | | | |
a. disinfecting boot washes at transition points
| | | | | |
b. Milking Staphylococcus positive cows first during herd milking
| | | | | | | |
,c. Implementing a pest control program within the milk parlour
| | | | | | | | |
d. All of the above
| | | |
e. None of the above - CORRECT ANSWER✔✔-b
| | | | | | |
Which reasons provides rationale for using genetic selection to improve
| | | | | | | | | |
disease resistance in livestock?
| | |
a. Little variation in disease phenotype within animal population
| | | | | | | |
b. Improvement is temporary so there's no long-term effect
| | | | | | | |
c. Can induce selection pressure on pathogen of interest to become
| | | | | | | | | | |
more virulent
|
d. Vaccine can't be used to prevent the disease since diagnosis is based
| | | | | | | | | | | | |
on host antibody response - CORRECT ANSWER✔✔-d
| | | | | |
Which does NOT explain why breeders have made huge genetic gains
| | | | | | | | | | |
for production traits but not health traits?
| | | | | |
a. Heritability estimates are lower for production traits
| | | | | | |
b. Production traits are monogenic while health traits are polygenic
| | | | | | | | |
c. It's easier to measure production traits
| | | | | |
d. These traits are inversely correlated - CORRECT ANSWER✔✔-a
| | | | | | | |
Which explains why SNPs have become the preferred genetic marker of
| | | | | | | | | | |
choice?
, a. Occur infrequently within genome
| | | |
b. All SNPs are non-synonymous
| | | |
c. Are typically bi-allelic
| | |
d. All of the above
| | | |
e. None of the above - CORRECT ANSWER✔✔-c
| | | | | | |
What is the advantage of this SNP phenomenon?
| | | | | | |
A. It allows for high throughput genotyping of animals
| | | | | | | | |
b. Alters 3D shape or function of protein
| | | | | | |
c. Don't alter 3D shape or function of protein
| | | | | | | |
d. Low frequency makes genotyping very cost-effective - CORRECT
| | | | | | | | |
ANSWER✔✔-a
You've been given the last of assessing the impact of sow stress during
| | | | | | | | | | | | |
pregnancy on passive immunity to piglets. Which would be the best
| | | | | | | | | | |
antigen for inclusion in a vaccine administered to the sow to assess
| | | | | | | | | | | |
passive transfer of antigen specific IgG to piglets after birth?
| | | | | | | | |
a. 30,000 Da chicken-specific lipid
| | | |
b. 50,000 DA porcine-specific protein
| | | |
c. 900 Da chicken-specific protein
| | | |
d. 10,000 Da fish-specific protein - CORRECT ANSWER✔✔-d
| | | | | | |
