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ANSC 4395 Breeding and Genetics Exam 4 Solved 100% Correct 2024
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ANSC 4395 Breeding and Genetics Exam 4 Solved 100% Correct 2024
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ANSC 4395 Breeding and Genetics Exam4 Solved 100% Correct 2024
Accuarcy is ___________ for individual records if the heritablility is at least moderate -
ANSWER-fairly high
Accuracy - ANSWER-is the confidence
-correlation between the true bv and the EBV
- will always be between 0-1 but never exactly 1 or 0
- the higher the better
Accuracy is always higher for large # of records when selection is based on multiple
records for an individual - ANSWER-increase is most pronounced when H^2 and
repeatablility are low
Accuracy is higher for _________ levels of heritablility - ANSWER-higher
Accuracy is higher for traits with a higher ___ - ANSWER-H^2
accuracy is never ________ when pedigree info i sused - ANSWER-high
An individual receives half of its genetic make up from both parents - ANSWER-
Expected BV= 1/2 sire+ 1/2 dam
Breeding Value - ANSWER-An individual's phenotype is the result of its genetic merit
and the effect of the environment
Each additional record - ANSWER-adds to the accuracy of the EBV
Estimated Breeding Value - ANSWER-- actual breeding value of an individual is never
known
- can be estimated from an individuals performance and the performance of its relatives
the clser relationship the better the estimates
-progeny, full sibs, half sibs, grand parents
Generation internal - ANSWER-the length of time it takes to replace members of 1
generation in a herd
symbol= L
the average age of the parents when any offspring is born
Genetic merit is also called - ANSWER-Breeding Value
Independent culling levels - ANSWER-all important traits are considered together
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