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5 Written Questions

5 Matching Questions

  1. BLUP Models
  2. Gene Combination Value
  3. Genetic Variation
  4. Repeatability
  5. Repeated Traits
  1. a Variability of BV for a trait in the population. The greater the genetic variation, the greater the difference between superior and inferior animals.
  2. b Measure of the strength of the relationship between repeated records for a trait in a population.
  3. c Important for individual performance
  4. d Best Linear Unbiased Prediction. Enables large scale genetic evaluation.
  5. e Traits for which individual animals have multiple performance records. (milk production, calf weaning weight)

5 Multiple Choice Questions

  1. Calculate a combined "breeding value" based on several traits.
  2. Time required to replace on generation with the next generation. Shorter interval = faster rate of genetic change.
  3. Training, permanent injury, developmental programming.
  4. Nutrition, track conditions, illnesses
  5. Rate at which selected individuals replace existing parents in the population.

5 True/False Questions

  1. Selection IntensityStrictness of selection criteria.


  2. Characteristics of Heritability-influences resemblance among relatives
    -influences accuracy of selection and rate of genetic change


  3. Accuracy of SelectionSelection based on performance above a certain level.


  4. Producing AbilityMeasure of the strength of the relationship between P and BV for a trait in a population.


  5. Contemporary GroupingRatio of individual performance compared to contemporary group mean.


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