Animal Breeding
Animal Breeding
Writing Exam Questions Assignment
Due: 09-09-2013
During the second lecture, Professor Abdo stressed that one must able to distinguish between two terms in order to understand the lecture. A can be defined as any observable or measurable characteristic of an individual, while a is an observed category or measured level of performance. An example of a would be horned, polled, or dehorned, while calving ease would be considered a . Lastly, the two terms discussed above, are controlled by the .
Ans. Trait, phenotype, phenotype, trait, genotype
T or F
GxE (genetics x environment) interaction does not play any role in determining the most appropriate biological type for a given environment. Ans. F
Breeds are races of animals that are often not genetically adapted to different conditions. Ans. F
The Goal of animal breeding is to improve populations, not individual animals. Ans. T
Genetic change is acquired much faster through natural selection than artificial selection. Ans. False
What is the fastest method to invoke genetic change?
a) Natural selection
b) Culling
c) Artificial selection
d) Replacement selection
Ans. C
An embryo implanted into surrogate cow has gametes stemming from which animal (s)?
a) Biological father and surrogate mother
b) Biological mother
c) Surrogate mother
d) Biological father and mother
e) Biological father
Ans. D
A measure of the strength and relationship between breeding values and phenotypic values for a trait in a population is called?
a) Heritability
b) Replacement selection
c) Hybrid vigor
d) Breeding value
Ans. A
After viewing the graphs, label each one as weak, strong, or no interaction between performance and environment.
Continued on next page…
Ans. A= No B= No C= Strong D= Weak E= Weak
Writing Exam Questions Assignment
Due: 09-09-2013
During the second lecture, Professor Abdo stressed that one must able to distinguish between two terms in order to understand the lecture. A can be defined as any observable or measurable characteristic of an individual, while a is an observed category or measured level of performance. An example of a would be horned, polled, or dehorned, while calving ease would be considered a . Lastly, the two terms discussed above, are controlled by the .
Ans. Trait, phenotype, phenotype, trait, genotype
T or F
GxE (genetics x environment) interaction does not play any role in determining the most appropriate biological type for a given environment. Ans. F
Breeds are races of animals that are often not genetically adapted to different conditions. Ans. F
The Goal of animal breeding is to improve populations, not individual animals. Ans. T
Genetic change is acquired much faster through natural selection than artificial selection. Ans. False
What is the fastest method to invoke genetic change?
a) Natural selection
b) Culling
c) Artificial selection
d) Replacement selection
Ans. C
An embryo implanted into surrogate cow has gametes stemming from which animal (s)?
a) Biological father and surrogate mother
b) Biological mother
c) Surrogate mother
d) Biological father and mother
e) Biological father
Ans. D
A measure of the strength and relationship between breeding values and phenotypic values for a trait in a population is called?
a) Heritability
b) Replacement selection
c) Hybrid vigor
d) Breeding value
Ans. A
After viewing the graphs, label each one as weak, strong, or no interaction between performance and environment.
Continued on next page…
Ans. A= No B= No C= Strong D= Weak E= Weak