1. family selection is best used in __________. a. when the trait heritability is high b. when the trait can be measured in a particular sex c. when the budget for the breeding program is low d. all of the above 2. the amount of weight given to traits in selection index is dependent on _______________. a. number of animals with the traits b. economic impact of the said trait c. the ease of observation of the trait d. all of the above 3. to harness the full advantages of multiple ovulation, it must be coupled with__________. a. estrus synchronization b. embryo transfer c. artificial insemination d. all of the above
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
Multiple choice: please select the correct letter and explain why you choose that. thanks
1. family selection is best used in __________.
a. when the trait heritability is high
b. when the trait can be measured in a particular sex
c. when the budget for the breeding program is low
d. all of the above
2. the amount of weight given to traits in selection index is dependent on _______________.
a. number of animals with the traits
b. economic impact of the said trait
c. the ease of observation of the trait
d. all of the above
3. to harness the full advantages of multiple ovulation, it must be coupled with__________.
a. estrus synchronization
b. embryo transfer
c. artificial insemination
d. all of the above
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