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ANSC 4395- Final QUESTIONS WITH COMPLETE ANSWERS

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selection Correct Answer: The practice of allowing certain individuals more opportunity to reproduce than others true Correct Answer: results of selection are predictable in magnitude and direction response to selection Correct Answer: genetic change that occurs as a result to selection ...

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  • October 19, 2022
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  • 2022/2023
  • Exam (elaborations)
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ANSC 4395- Final QUESTIONS WITH
COMPLETE ANSWERS
selection Correct Answer: The practice of allowing certain individuals more opportunity to
reproduce than others

true Correct Answer: results of selection are predictable in magnitude and direction

response to selection Correct Answer: genetic change that occurs as a result to selection

heritability, selection Correct Answer: response is a function of ___________ and the
_________ differential

selection differential Correct Answer: the difference between the mean performance of the
selected individuals and the average of the entire heard

false- negative Correct Answer: if the goal to decrease the mean for a trait, then the selection
differential and the response will be positive.

generation interval Correct Answer: the length of time it takes to replace the members of one
generation of a herd.

breeding value Correct Answer: an individuals phenotype is the result of it's genetic merit and
the effect of the environment

Estimated Breeding Value (EBV) Correct Answer: estimated from an individuals performance
and the performance of it's relatives

progeny, sibs, parents Correct Answer: most common types of relatives used to calculate EBV

true Correct Answer: addition of information from relatives will always increase confidence in
an estimate breeding value

individual's own performance Correct Answer: single most important piece of info for
estimating breeding valueb

repeatability Correct Answer: ___________ is the association between successive records on an
individual.

false- low Correct Answer: increase is most pronounced when heritability and repeatability are
both high

true Correct Answer: each additional record adds to the accuracy but adds less than the previous
record.

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