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ANSC 4395 Final Exam with complete solutions 2024_2025
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ANSC 4395 Final Exam with complete solutions 2024_2025
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ANSC 4395 Final Exam with completesolutions 2024/2025
Measured - ANSWER✔️ ✔-Quantitative
️ traits are those that can be
__________________.
Weights
Heights
Litter size
Number of eggs
Racing speed - ANSWER✔️
✔-Some
️ examples of quantitative traits
Many pairs of genes - ANSWER✔️
✔-Quantitative
️ traits are controlled by
One pair - ANSWER✔️
✔-Effects
️ of _______ _________ of genes cannot be
distinguished.
Identical - ANSWER✔️ ✔-The
️ activity at any one pair of genes is ______________
to the types of gene action discussed in simply-inherited traits.
Phenotype - ANSWER✔️
✔-The
️ outward appearance of an individual.
Measurement - ANSWER✔️ ✔-The
️ phenotype for quantitative traits is usually a
_____________________.
Sum - ANSWER✔️ ✔-The
️ __________ of the genetic and environmental factors
which have an effect.
, P = G + E - ANSWER✔️
✔-Formula
️ for phenotype
Subdivided - ANSWER✔️ ✔-Both
️ genetic and environmental factors can be
___________________ into more explicit components.
Additive effects
Dominance effects
Epistatic effects - ANSWER✔️
✔-Genetic
️ effects can be divided into
Additive Effect - ANSWER✔️ ✔-Occur
️ when two or more genes source a single
contribution to the final phenotype.
Dominance Effect - ANSWER✔️ ✔-Phenomenon
️ of one variant (allele) of a gene
on a chromosome masking or overriding the effect of a different variant of the
same gene on the other copy of the chromosome.
Epistatic Effect - ANSWER✔️ ✔-The
️ phenomenon where the effects of one gene
are modified by one or several other genes at different loci.
Not - ANSWER✔️
✔-Dominance
️ is ______ always complete.
Heterozygote - ANSWER✔️
✔-__________________
️ is exactly half way between
the homozygotes.
Selection decisions - ANSWER✔️
✔-When
️ dominance is present, it affects our
ability to make what?
Selection - ANSWER✔️ ✔-If
️a trait is controlled by many pairs of genes with
additive gene action, it will be easier to make improvement through
___________________.
Epistasis - ANSWER✔️
✔-Interaction
️ among genes at multiple loci.
Epistasis - ANSWER✔️
✔-May
️ have interaction between 2, 3, or more loci.
Constant - ANSWER✔️
✔-Gene
️ action at one locus may not be _______________.
Temporary environmental effects - ANSWER✔️ ✔-These
️ are sources of
environmental variation that have somewhat of a temporary effect.
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