UNIPARENTAL HETERODISOMY
\jˈuːnɪpˌe͡əɹəntə͡l hˌɛtɹə͡ʊdˈɪsəmɪ], \jˈuːnɪpˌeəɹəntəl hˌɛtɹəʊdˈɪsəmɪ], \j_ˈuː_n_ɪ_p_ˌeə_ɹ_ə_n_t_əl h_ˌɛ_t_ɹ_əʊ_d_ˈɪ_s_ə_m_ɪ]\
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The presence in a cell of two paired chromosomes from the same parent, with no chromosome of that pair from the other parent. This chromosome composition stems from non-disjunction (NONDISJUNCTION, GENETIC) events during MEIOSIS. The disomy may be composed of both homologous chromosomes from one parent (heterodisomy) or a duplicate of one chromosome (isodisomy).
By DataStellar Co., Ltd
