ANSC 4395 Simply-Inherited and Polygenic
Traits; Basic Statistics for Animal Breeding Exam |
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1 Simply-Inherited Traits 2 Mode
3 Sample 4 Test Matings
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Terms in this set (33)
, Simply-Inherited Traits - traits affected by only a few genes
- qualitative or categorical
- rarely quantitative
- typically not affected by the environment
Polygenic Traits - affected by many genes with no gene having an
overriding influence
- typically quantitative or continuous in expression
- greatly influenced by the environment
Threshold Traits polygenic traits that have categorical phenotypes
Which are more important? - typically, polygenic traits
- traits that determine productivity & profitability
Test Matings - matings designed to reveal the genotype of an
individual for a small number of loci
- simply-inherited traits
3 general types of test matings to 1) mating to recessives
determine if an individual is 2) mating to heterozygots
heterozygous: 3) mating a sire to his daughters
the method with the highest mating to recessives
probability of detection:
Quantitative - measured on a numerical scale
- under the influence of many genes and the
environment
- express a continuous distribution from one
extreme to the other
- no discreet phenotypic classes like qualitative
traits
Traits; Basic Statistics for Animal Breeding Exam |
Questions with 100% Correct Answers | Verified |
Latest Update 2026
Save
Practice questions for this set
Learn 1 /7 Study with Learn
most frequent value
Choose an answer
1 Simply-Inherited Traits 2 Mode
3 Sample 4 Test Matings
Don't know?
Terms in this set (33)
, Simply-Inherited Traits - traits affected by only a few genes
- qualitative or categorical
- rarely quantitative
- typically not affected by the environment
Polygenic Traits - affected by many genes with no gene having an
overriding influence
- typically quantitative or continuous in expression
- greatly influenced by the environment
Threshold Traits polygenic traits that have categorical phenotypes
Which are more important? - typically, polygenic traits
- traits that determine productivity & profitability
Test Matings - matings designed to reveal the genotype of an
individual for a small number of loci
- simply-inherited traits
3 general types of test matings to 1) mating to recessives
determine if an individual is 2) mating to heterozygots
heterozygous: 3) mating a sire to his daughters
the method with the highest mating to recessives
probability of detection:
Quantitative - measured on a numerical scale
- under the influence of many genes and the
environment
- express a continuous distribution from one
extreme to the other
- no discreet phenotypic classes like qualitative
traits
