MBG2400 Canovas Lectures Questions with Complete Correct Answers | Grade A+

What is heritability? Ans: the proportion of variation among individuals that we can attribute to genes What is a quantitative trait? Ans: a measurable phenotype that depends on the cumulative actions of many genes and the environment What is a QTL? Ans: quantitative trait loci What is the goal of QTL detection? Ans: find a polymorphism in the genome that is associated with a distinct difference in phenotype What are examples of QTLs? Ans: Calpastatin, halothane 2 When is candidate gene approach useful? Ans: When gene in question is known What is the candidate gene approach? Ans: Selective and targeted QTL detection for a known gene, done one at a time looking at specific regions What is the anonymous marker panel approach? Ans: Develops a panel of markers, able to scan large regions with multiple markers When do we use the anonymous marker panel approach? Ans: When we don't know what gene affects what trait, we know the gene is connected to something but are unsure of its genetic impact What is a pro of the anonymous marker panel approach? Ans: More likely to find something What is a con of the anonymous marker panel approach? Ans: Harder to analyse 3 What is used in candidate gene approach for QTL detection? Ans: PCR Why don't we use the candidate gene approach for QTL detection anymore? Ans: Too expensive and slow What is used in the anonymous mark