Gene conversion

обращение гена, необратимая рекомбинация

Англо-русский политехнический словарь

Gene conversion

noun a genetic process that involves nonreciprocal meiotic recombination in heterozygotes in which a mismatched DNA sequence from one heteroduplex DNA strand is replaced with a sequence complementary to the other strand resulting in aberrant gametic ratios (as 3:1) and that is observed especially in ascomycetous fungi

Энциклопедический словарь Мерриама-Вебстера