MBG 3060 Study Guide - Comprehensive Final Exam Guide - Locus (Genetics), Allele, Genotype
20 Nov 2018
School
Department
Course
Professor
Document Summary
Recognized that genes come in different forms (alleles) and diploid organisms has 2 alleles for each inherited characteristic. Each spermatozoa and oocyte carry one allele for each characteristic since allelic pairs segregate during meiosis. When two alleles are different, one is expressed and one is masked. Law of segregation: allelic pairs segregate during gametic formation and the paired condition is restored by random fusion of gametes at fertilization. For each inherited characteristic, an organism has 2 alleles. Locus (location on chromosome) with 2 alleles in diploid organisms. Demonstrates polymorphism or difference in alleles in the dna sequence at a locus in the organism"s genome. In horses, there is a lethal white overo locus in the paint/pinto colour pattern. When two or more loci are independent of each other. F(aabb) = 1/2 x 1/2 = 0. 25 (1/4) Used to calculate the probability or frequency of multiple different genotypes (ex. Used to calculate the probability or frequency of a specific genotype (ex.
