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Chapter 15.3

Linked Genes

QuestionAnswer
linked genes genes located on the same chromosomes that tend to be inherited together in genetic crossover -don't assort independently
genetic recombination when the parental genes are mixed and matched so the offspring have non-parent phenotypes
when does genetic recombination form? form during prophase of meiosis 1 because of the crossing over of homologous chromosomes, occasionally breaks the physical connection between genes on sam chromosome
recombinant chromosomes new combinations in gametes -random fertilization increase # of variant combos produced = genetic variation from which natural selection works
genetic map an ordered list of the genetic loci along a particular chromosome -farther apart 2 genes on a chromosome, the higher the probability cross occurs between them, so the higher recombinant frequency
linkage map a genetic map based on recombination frequencies -genetically unlinked and behave as if diff chromosome
cytogenic map locates genes with respect to chromosomal features, such as stained bands that can be seen in microscope
Created by: maddiemiller
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