ANSC 4395 FiNAl ExAm NEwESt 2025/2026 with 78
ComplEtE QuEStioNS ANd CorrECt ANSwErS |AlrEAdy
GrAdEd A+||BrANd NEw VErSioN!
Quantitative traits are those that can be __________________. - ANSWER-Measured
Some examples of quantitative traits - ANSWER-Weights
Heights
Litter size
Number of eggs
Racing speed
Quantitative traits are controlled by - ANSWER-Many pairs of genes
Effects of _______ _________ of genes cannot be distinguished. - ANSWER-One pair
The activity at any one pair of genes is ______________ to the types of gene action
discussed in simply-inherited traits. - ANSWER-Identical
The outward appearance of an individual. - ANSWER-Phenotype
The phenotype for quantitative traits is usually a _____________________. - ANSWER-
Measurement
, The __________ of the genetic and environmental factors which have an effect. - ANSWER-
Sum
Formula for phenotype - ANSWER-P = G + E
Both genetic and environmental factors can be ___________________ into more
explicit components. - ANSWER-Subdivided
Genetic effects can be divided into - ANSWER-Additive effects
Dominance effects
Epistatic effects
Occur when two or more genes source a single contribution to the final phenotype. -
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. -
ANSWER-Dominance Effect
The phenomenon where the effects of one gene are modified by one or several other
genes at different loci. - ANSWER-Epistatic Effect
Dominance is ______ always complete. - ANSWER-Not
__________________ is exactly half way between the homozygotes. - ANSWER-
Heterozygote
When dominance is present, it affects our ability to make what? - ANSWER-Selection
decisions
ComplEtE QuEStioNS ANd CorrECt ANSwErS |AlrEAdy
GrAdEd A+||BrANd NEw VErSioN!
Quantitative traits are those that can be __________________. - ANSWER-Measured
Some examples of quantitative traits - ANSWER-Weights
Heights
Litter size
Number of eggs
Racing speed
Quantitative traits are controlled by - ANSWER-Many pairs of genes
Effects of _______ _________ of genes cannot be distinguished. - ANSWER-One pair
The activity at any one pair of genes is ______________ to the types of gene action
discussed in simply-inherited traits. - ANSWER-Identical
The outward appearance of an individual. - ANSWER-Phenotype
The phenotype for quantitative traits is usually a _____________________. - ANSWER-
Measurement
, The __________ of the genetic and environmental factors which have an effect. - ANSWER-
Sum
Formula for phenotype - ANSWER-P = G + E
Both genetic and environmental factors can be ___________________ into more
explicit components. - ANSWER-Subdivided
Genetic effects can be divided into - ANSWER-Additive effects
Dominance effects
Epistatic effects
Occur when two or more genes source a single contribution to the final phenotype. -
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. -
ANSWER-Dominance Effect
The phenomenon where the effects of one gene are modified by one or several other
genes at different loci. - ANSWER-Epistatic Effect
Dominance is ______ always complete. - ANSWER-Not
__________________ is exactly half way between the homozygotes. - ANSWER-
Heterozygote
When dominance is present, it affects our ability to make what? - ANSWER-Selection
decisions
