ANSC 4395 Final Exam (Dr. Stutts) questions and
answers 2025\2026 A+ Grade
Quantitative traits are those that can be __________________.
- correct answer Measured
Some examples of quantitative traits
- correct answer Weights
Heights
Litter size
Number of eggs
Racing speed
Quantitative traits are controlled by
- correct answer Many pairs of genes
Effects of _______ _________ of genes cannot be distinguished.
- correct answer One pair
The activity at any one pair of genes is ______________ to the types of gene action discussed in simply-
inherited traits.
- correct answer Identical
The outward appearance of an individual.
- correct answer Phenotype
The phenotype for quantitative traits is usually a _____________________.
- correct answer Measurement
, The __________ of the genetic and environmental factors which have an effect.
- correct answer Sum
Formula for phenotype
- correct answer P = G + E
Both genetic and environmental factors can be ___________________ into more explicit components.
- correct answer Subdivided
Genetic effects can be divided into
- correct answer Additive effects
Dominance effects
Epistatic effects
Occur when two or more genes source a single contribution to the final phenotype.
- correct answer Additive Effect
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.
- correct answer Dominance Effect
The phenomenon where the effects of one gene are modified by one or several other genes at different
loci.
- correct answer Epistatic Effect
Dominance is ______ always complete.
- correct answer Not
__________________ is exactly half way between the homozygotes.
- correct answer Heterozygote
When dominance is present, it affects our ability to make what?
- correct answer Selection decisions
answers 2025\2026 A+ Grade
Quantitative traits are those that can be __________________.
- correct answer Measured
Some examples of quantitative traits
- correct answer Weights
Heights
Litter size
Number of eggs
Racing speed
Quantitative traits are controlled by
- correct answer Many pairs of genes
Effects of _______ _________ of genes cannot be distinguished.
- correct answer One pair
The activity at any one pair of genes is ______________ to the types of gene action discussed in simply-
inherited traits.
- correct answer Identical
The outward appearance of an individual.
- correct answer Phenotype
The phenotype for quantitative traits is usually a _____________________.
- correct answer Measurement
, The __________ of the genetic and environmental factors which have an effect.
- correct answer Sum
Formula for phenotype
- correct answer P = G + E
Both genetic and environmental factors can be ___________________ into more explicit components.
- correct answer Subdivided
Genetic effects can be divided into
- correct answer Additive effects
Dominance effects
Epistatic effects
Occur when two or more genes source a single contribution to the final phenotype.
- correct answer Additive Effect
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.
- correct answer Dominance Effect
The phenomenon where the effects of one gene are modified by one or several other genes at different
loci.
- correct answer Epistatic Effect
Dominance is ______ always complete.
- correct answer Not
__________________ is exactly half way between the homozygotes.
- correct answer Heterozygote
When dominance is present, it affects our ability to make what?
- correct answer Selection decisions
