L41 BIOL 2970 Study Guide - Midterm Guide: Centimorgan, Ascus, Twin Study
24 Oct 2018
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At the end of this unit, you should be able to define, recall, and use the following: 2 (phenotypic variance) is the sum of sg. 2 (genotypic variance) is the sum of sa (epistatic effects); sd. 2 can be referred to as non-additive genotypic variance: genotype by environment interaction, h2 (broad sense heritability) = sg. 2: h2 (narrow sense heritability) = sa. H2 can also be calculated as the slope of the best fit line correlating parent to offspring traits. In humans, h2 can also be calculated using concordance in twin studies; monozygotic twins, dizygotic twins. 2 from f1 and f2 of two pure breeding lines), calculate environmental variance, non-additive variance, and narrow-sense heritability: roughly estimate or calculate heritability for traits in humans using twin studies. From the multifactorial traits section, you will be provided with the following equations on quizzes and exams:
