Gene loss during diploidization is not completely random, but heavily selected.
2.
Filaments of mating type alpha have haploid nuclei ordinarily, but these can undergo a process of diploidization ( perhaps by endoduplication or stimulated nuclear fusion ) to form diploid cells termed blastospores.
3.
The Meselson effect should cause entire copies of an organism's genome to diverge from each other, effectively reducing all anciently asexual organisms to a haploid state, in a process similar to the diploidization following whole genome duplication.
4.
Most paleopolyploids, through evolutionary time, have lost their polyploid status through a process called "'diploidization "', and are currently considered diploids ( e . g . baker's yeast, " Arabidopsis thaliana ", ).
5.
Duplication events that occurred a long time ago in the history of various evolutionary lineages can be difficult to detect because of subsequent diploidization ( such that a polyploid starts to behave cytogenetically as a diploid over time ) as mutations and gene translations gradually make one copy of each chromosome unlike its counterpart.
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