If we assume that type I venom in adults is ancestral on the basis of its higher frequency among extant species [ 29], then the transition to type II venom has occured multiple times in rattlesnakes within the last ∼12.7 million years [ 36], a remarkable example of parallel phenotypic evolution.
Wilson and Nierhaus [ 51] have proposed that the E site is ancestral on the basis of its conservation across all three kingdoms, and they identify three highly conserved nucleotides critical for the binding of the CCA end of the E site tRNA.
In other words, the DOJ is going after a program meant to allow indigenous people to live on their ancestral lands on the basis that it discriminates on the basis of race.
The latter (using 12S/16S mtDNA) are inferred on the basis of ancestral nucleotide states reconstructed using parsimony implemented in the computer program MacClade [64].
The IHHNV consensus sequences from the north and southern regions differed in nine nucleotide sites that provided the basis for ancestral DNA state reconstructions.
We further subdivided the functional categories into nine mutation types on the basis of ancestral and derived alleles.
Thus the genome halving problem is to reconstruct the ancestral genome on the basis of a decomposition of the present day genome into a set of apparently duplicated blocks of genes or DNA sequence dispersed among the chromosomes.
Legend has it that Camilla cheekily first propositioned him on the basis of that ancestral connection.
Many members of other ethnic groups accuse him and his family of stealing their ancestral land, which became the basis for the Kenyatta family fortune.
The Balfour Declaration was the first international recognition by a world power of the right of the Jewish people to a national home in their ancestral land and formed the basis of Britain's Mandate for Palestine in 1920.
