Dissociation in a polymerization model of homochirality

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A fully self-contained model of homochirality is presented that contains the effects of both polymerization and dissociation. The dissociation fragments are assumed to replenish the substrate from which new monomers can grow and undergo new polymerization. The mean length of isotactic polymers is found to grow slowly with the normalized total number of corresponding building blocks. Alternatively, if one assumes that the dissociation fragments themselves can polymerize further, then this corresponds to a strong source of short polymers, and an unrealistically short average length of only 3. By contrast, without dissociation, isotactic polymers becomes infinitely long.

Original languageEnglish
JournalOrigins of Life and Evolution of the Biosphere
Issue number6
Pages (from-to)507-521
Number of pages15
Publication statusPublished - 1 Dec 2005

    Research areas

  • DNA polymerization, Enantiomeric cross-inhibition, Origin of homochirality Revision: 1.41

ID: 208855259