HMB265H1 Study Guide - Fall 2018, Comprehensive Midterm Notes - Gene, Allele, Phenotype
12 Oct 2018
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HMB265H1 Full Course Notes
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Many common and rare diseases are inherited. Even infectiour diseases can have a genetic component (e. g. aids, malaria resistance. Crop and livestock improvement rely on understanding of genetics of important traits. Genetic diversity of crops and livestock affects their long-term survival: conservation. Genetic diversity affects a species" ability to adapt to changing environments. Low genetic diversity also increases exposure of populations to genetic diease: biology. Genetic analysis helps us understand how organisms work. Moravian sheep breeders: selective breeding practices had produced valuable flocks of merino sheep that made large quantities of soft, fine wool, breeders dilemma. Krogh principle: need to identify organisms that are more amenable to genetic analysis-model organisms, short generation times, can be inbred (self-fertilize, simple reproductive biology, small size (easy to grow/breed, large numbers of progeny. If the offspring all show the dominant phenotype the parents was homozygous dominant for the trait. If there is a 1:1 ratio the parent was heterozygous for the trait.
