ANSC 4395-Breeding & Genetics Exam
Questions and Answers with Verified
Solutions | Latest Updated 2026
Traits affected by only a few Simply-Inherited Traits:
genes EX: Coat color, Horns
Either/or expression EX: Black Simply-inherited Traits:
or red, Horned or polled
- Qualitative or categorical
quantitative (Measured with Simply-inherited Traits are rarely...
numbers or continuous) EX:
White spotting in cats (1-9
numerical rating)
environment EX: Chocolate lab Simply-inherited Traits are typically,
may bleach out if left in the affected very little by...
sun, but there is no mistaking
it for a black or yellow lab
Affected by many genes with Polygenic Traits:
no gene having an overriding
influence EX: Growth rate, Milk
production, Ribeye area
quantitative or continuous in Polygenic Traits are typically...
expression-Phenotypes are
usually described by numbers
EX: Weaning weights, Milk
yield, Ribeye Area
, environment-Lack of Polygenic Traits are greatly
feed-Heat/cold stress-Training influenced by...
of quarter horses (speed)
Threshold Traits-Pregnancy Some polygenic traits have
(pregnant or not pregnant) categorical phenotypes, called
what?
- Dystocia (1-5)
- Natural gait (trotter or pacer)
- Influenced by many genes
but have an either/or result
Typically, polygenic Between simply-inherited and
traits-Growth rate, fertility, polygenic traits, which is more
milk production-Traits that important?
determine productivity and
profitability
simply-inherited traits-Coat or Traits: Some markets are more
feather color-Polled sensitive to...
simply-inherited Genetic defects are usually...
-Both are subject to the same Common Characteristics of
Mendelian mechanisms (Laws Simply-inherited & Polygenic Traits:
of segregation & independent
assortment)
- Dominance and epistasis
affect both-Principles of
selection and mating apply to
both (attempt to increase the
Questions and Answers with Verified
Solutions | Latest Updated 2026
Traits affected by only a few Simply-Inherited Traits:
genes EX: Coat color, Horns
Either/or expression EX: Black Simply-inherited Traits:
or red, Horned or polled
- Qualitative or categorical
quantitative (Measured with Simply-inherited Traits are rarely...
numbers or continuous) EX:
White spotting in cats (1-9
numerical rating)
environment EX: Chocolate lab Simply-inherited Traits are typically,
may bleach out if left in the affected very little by...
sun, but there is no mistaking
it for a black or yellow lab
Affected by many genes with Polygenic Traits:
no gene having an overriding
influence EX: Growth rate, Milk
production, Ribeye area
quantitative or continuous in Polygenic Traits are typically...
expression-Phenotypes are
usually described by numbers
EX: Weaning weights, Milk
yield, Ribeye Area
, environment-Lack of Polygenic Traits are greatly
feed-Heat/cold stress-Training influenced by...
of quarter horses (speed)
Threshold Traits-Pregnancy Some polygenic traits have
(pregnant or not pregnant) categorical phenotypes, called
what?
- Dystocia (1-5)
- Natural gait (trotter or pacer)
- Influenced by many genes
but have an either/or result
Typically, polygenic Between simply-inherited and
traits-Growth rate, fertility, polygenic traits, which is more
milk production-Traits that important?
determine productivity and
profitability
simply-inherited traits-Coat or Traits: Some markets are more
feather color-Polled sensitive to...
simply-inherited Genetic defects are usually...
-Both are subject to the same Common Characteristics of
Mendelian mechanisms (Laws Simply-inherited & Polygenic Traits:
of segregation & independent
assortment)
- Dominance and epistasis
affect both-Principles of
selection and mating apply to
both (attempt to increase the
