BIOL-3350 Chapter Notes - Chapter 7: Probability Distribution, Reaction Norm, Phenotypic Plasticity
Document Summary
Explain how continuous variation in phenotypes arises. Traits important for survival/reproductive success have expression of alleles influenced by many genetic loci. Because these traits are influenced by alleles at many loci, the traits often vary continuously among individuals. The study of continuous phenotypic traits and their underlying evolutionary mechanisms. Involves genetic variation, environmental variation and the interaction between genetics and the environment. Analyze the differences between broad sense and narrow sense heritability. Variance is very important for quantitative genetics. This is an estimate for the amount of variation around a trait in a population. Vp (the total variance in a phenotypic trait in a population) is actually the the sum of several different kinds of variances. The proportion of this total variation between individuals in a given population due to genetic variation. A useful way to measure the relative importance of genetic and environmental effects on trait expression.
