Sentence examples for major evolutionary groups from inspiring English sources

Based on sequences of rRNA (ribosomal RNA), molecules present in all organisms as part of the protein-manufacturing machinery, Woese's classification system revealed three major evolutionary groups of life on Earth, one of which is eukaryotic (the Eukarya) and two of which are prokaryotic (Eubacteria and Archaea).

Elsewhere (Padian 2008), I have described the use of evograms, diagrams that show students how we know what we know about the origins of major evolutionary groups and adaptations.

Second, tests of SNP and mtDNA frequencies resolved three major evolutionary groups of populations.

The two major evolutionary groups of filoviruses have been assigned to the genera Ebolavirus and Marburgvirus.

Based on ITS, microsatellite, chloroplast and nuclear DNA content data we demonstrate the presence of three major evolutionary groups broadly characterized as A. lyrata group, A. halleri group and A. arenosa group.

Now about 200 complete plastid genome sequences are available for flowering plants, representing all major evolutionary lineages within this group.

For example, whole-genome duplications are a major evolutionary force in many eukaryotic groups (Kellis et al. 2004; Adams and Wendel 2005; Dehal and Boore 2005; Aury et al. 2006), and alternatively, in prokaryotes, large-scale deletions have been detected in both experimental and comparative analyses (Moran and Mira 2001; Nilsson et al. 2005).

In light of our hypothesis that eukaryotes emerged from within Archaea it is important to pose the question why only a single archaeal group experienced this major evolutionary transition in the context of the broadly applicable selective pressure for oxygen tolerance.

Resolution of this tension between the interests of the group and the individual allows major evolutionary transitions, wherein communities of individuals merge into a single functional unit [ 8- 11].

Most major evolutionary changes in floral morphology that define these two groups occur in the petal and stamen whorls.

Group (e.g. kin) selection helps to explain the variation at all the levels of biological organization created by major evolutionary transitions (Maynard-Smith and Szathmary 1995), from the grouping of genes into chromosomes, and cells into multicellular organisms, to the grouping of multicellular organisms into social groups and colonies.