GEN-3000 Study Guide - Midterm Guide: Allosome, Chromosome, Y Chromosome
Document Summary
Chapter 4: alleles, loss-of-function - reduced the amount or productivity, null allele completely wipes out function/no longer working, gain-of-function goes above and beyond, may be taking on a new function. Doing a function at a time it"s not supposed to: neutral mutation change where we can distinguish one allele from another. Phenotypically neutral, genotypically we can distinguish the difference. Wont get a different phenotype as a result: wild type allele most common allele. The norm of the population: mutant anything different, capital dominant allele, lowercase recessive allele, don"t assume mutant is recessive allele or anything bad, + means wild-type k. There is no blending to create a mix, both traits or equally shown: super scripts. Incomplete penetrance genotype does not always produce the expected phenotype. Has the genotype but does not show it in the phenotype: penetrance percentage of individuals having a particular genotype that actually expresses the expected phenotype, expressivity degree to which a character is expressed.
