ANSC 4395 Breeding and Genetics Exam 3 QUESTIONS AND ANSWERS| GRADED A
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Course
ANSC 4395
Institution
Western Governors University
Simply Inherited Traits Correct Answer: - Traits affected by: coat color, horns
- Qualitative or categorical; rarely quantitative
Polygenic Traits Correct Answer: - Affected by many genes with no gene having an overriding influence
- Growth rate, milk production, ribeye area
- Typically qua...
ansc 4395 breeding and genetics exam 3 questions and answers| graded a
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ANSC 4395
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ANSC 4395 Breeding and Genetics Exam 3
QUESTIONS AND ANSWERS| GRADED A
Simply Inherited Traits Correct Answer: - Traits affected by: coat color, horns
- Qualitative or categorical; rarely quantitative
Polygenic Traits Correct Answer: - Affected by many genes with no gene having an overriding
influence
- Growth rate, milk production, ribeye area
- Typically qualitative or continuous in expression
- Greatly influences by environment
- Lack of feed, heat/cold stress, training of quarter horses
Threshold Traits Correct Answer: - Some polygenic have categorical phenotypes
- Pregnancy, dystocia, natural gait, influenced by many genes but have an either/or result
Which type of trait is more important? Correct Answer: Typically polygenic traits because those
are the traits that determine productivity and profitability
Test Matings Correct Answer: - Matings designed time reveal the genotype of an individual for
a small number of loci
- Simply inherited traits
- Impossible for polygenic traits
Statistic Correct Answer: Estimate of a parameter
Parameter Correct Answer: A value that describes a population
Population Correct Answer: All the members of a group
Sample Correct Answer: Subset of a population
Discrete Variable Correct Answer: Has distinct classes
Continuous Variable Correct Answer: For any two values, there is a possible intermediate value
Mean Correct Answer: - Main measure of central tendency
- AKA the average
Median Correct Answer: - The number in the middle (better descriptor)
- Value with the same number of observations with larger values as the number of observations
with smaller values
Mode Correct Answer: The most frequent value (better descriptor)
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