Bundle

ANSC 4395 Breeding and Genetics Exam 3 QUESTIONS AND ANSWERS| GRADED A|TEST 1 AND 2|EXAM 1,3 AND 4|FINAL EXAM WITH COMPLETE 100% COREECT ANSWERS

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 ge... ne 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)Simply-Inherited Traits Correct Answer: - traits affected by only a few genes - qualitative or categorical - rarely quantitative - typically not affected by the environment Polygenic Traits Correct Answer: - affected by many genes with no gene having an overriding influence - typically quantitative or continuous in expression - greatly influenced by the environment Threshold Traits Correct Answer: polygenic traits that have categorical phenotypes Which are more important? Correct Answer: - typically, polygenic traits - traits that determine productivity & profitability Test Matings Correct Answer: - 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 determine if an individual is heterozygous: Correct Answer: 1) mating to recessives 2) mating to heterozygots 3) mating a sire to his daughters the method with the highest probability of detection: Correct Answer: mating to recessives Quantitative Correct Answer: - measured on a numerical scale - under the influence of many genes and the environment - express a continuous distribution from one extreme to the other [Show More]

Last updated: 1 year ago

Bundle contains 12 items