When using maximum likelihood to determine the locations of genes that influence traits, the ratio of two different probabilities was calculated for each marker location.

Question

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In maximum likelihood approaches for mapping genes that influence traits, the likelihood of the observed data under different genetic models is calculated for each marker location. This often involves comparing the likelihood of the data under a model where a marker is linked to a trait-influencing gene versus a model where there is no linkage, effectively calculating a ratio of two different probabilities.

When Using Maximum Likelihood to Determine the Locations of Genes