We investigated development and molecular identity of ventral muscle fibers in Capitella (18) and found that (i), preceding metamorphosis, these converge and fuse into an axochord (Fig. 4, A to D, and fig. (scienceintheclassroom.org)
In contrast the Lactobacillus acidophilus and Bifidus longum in this formula are based on ATCC prototypical bacterial strains with confirmed molecular identity. (greenpasture.org)
These molecular identity cards are produced by a set of genes collectively known as the major histocompatibility complex, or MHC. (discovermagazine.com)