More on genome's composition
15 Nov, 2001 Dov in biologicalEvolution
Mitochondria and chloroplast and some nuclei and chromosomes, each constituting a continuous lineage were, each, once upon the time very likely "independent", before entering into an endosymbiotic association with a partner cell that also had its own nucleus and chromosome(s). Consequently some of the genes of the expanded association become apparently unemployed or surplus or dependent members of the resulting chromosomal-association, of the resulting genome. Now could'nt such an evolutionary course of development account and explain some genome's "duplications" and "superfluous" or "junk" sections?
Hborteck reply: Of course.