Abstract
We have considered self-fertilization with selection for a pair of independent diallelic loci. The average, variance and third order moment about the mean have been calculated for the distribution representing the number of generations needed to reach an absorption beginning in any one of the transient states. We have analysed four cases: no selection and those arising from the combination of advantage selective values for the heterozygous and homozygous genotypes for both genes. All cases have been compared. For the calculations we have used the theory of absorbent Markov chains. The formalism employed, which arises from a transition matrix P, was previously developed by Kemeny & Snell (1960) and Bosso, Sorarrain & Favret (1969).
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