Browsing Biology by Title
Now showing items 66-85 of 1310
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Algal genes in aplastidic eukaryotes are not necessarily derived from historical plastids
(2012-07)In photosynthetic eukaryotes, many genes were transferred from plastids or algal endosymbionts to nuclear genomes of host cells. These transferred genes are often considered genetic footprints of plastids. However, genes ... -
Alkaloid defenses of co-mimics in a putative Müllerian mimetic radiation
(2014)Background Polytypism in aposematic species is unlikely according to theory, but commonly seen in nature. Ranitomeya imitator is a poison frog species exhibiting polytypic mimicry of three congeneric model species (R. ... -
Alteration of In Vivo Cellulose Ribbon Assembly by Carboxymethylcellulose and Other Polysaccharides
(East Carolina University, 1982)In vivo cellulose ribbon assembly by the Gram-negative bacterium Acetobacter xylinum can be altered by incubation in carboxymethylcellulose (CMC), a negatively charged water-soluble cellulose derivative, and also by ... -
Amazonian Amphibian Diversity Is Primarily Derived from Late Miocene Andean Lineages
(East Carolina University, 2009-03)The Neotropics contains half of remaining rainforests and Earth’s largest reservoir of amphibian biodiversity. However, determinants of Neotropical biodiversity (i.e., vicariance, dispersals, extinctions, and radiations) ...