The selection differential for a particular trait can be accurately defined as the difference ...

The selection differential for a particular trait can be accurately defined as the difference
between the selected animals to be parents and:

A. the average of that particular breed of animals.
B. the average of all animals available for selection within the herd or flock.
C. that portion of the difference in performance passed on to the next generation.

Question 2

If a trait is low in heritability, the environment often masks the genotype, making it
more difficult to select herd or flock replacements with confidence that genetic progress
will be made.

A. True B. False

Question 3

At least part of the explanation for increased heterosis as a result of the mating of more
distantly related animals is that greater gene heterozygosity is possible, and Good genes
are more likely to be dominant genes and mask the effects of recessive genes.

A. True B. False

Question 4

In two herds averaging the same genetic merit for a particular trait, more genetic progress
should be possible in the herd with ________ variation in performance.

A. more B. less

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The selection differential for a particular trait can be accurately defined as the difference ...

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