(a.) Relating to evolution; as, evolutionary discussions.
Example Sentences:
(1) Gradual evolutionary change by natural selection operates so slowly within established species that it cannot account for the major features of evolution.
(2) The paper develops a model as a framework for monitoring the course of the program through the policy cycle and recommends that the policy process be considered as dynamic, interactive, and evolutionary.
(3) Therefore, the evolutionary origins, and perhaps the functions, of the Ia gamma chains are distinct from those of the other two Ia subunits alpha and beta.
(4) The sequence data were used to infer phylogeny by using a maximum-parsimony method, an evolutionary-distance method, and the evolutionary-parsimony method.
(5) Since the four determining coefficients may change over evolutionary time-scales, the mathematical results together with a natural selection argument proves that virulence gamma 2 attenuates.
(6) For evolutionary biologists population variability per se has proven of interest.
(7) The results found with individual chromosomes in the different species also appear relevant, in the light of the evolutionary relationships between these nonhuman primates and man.
(8) Genetic distances were calculated to determine evolutionary relationships.
(9) Detailed information on the structure and regulation of MHC gene expression will be required to understand fully the biologic role of the MHC and the evolutionary relationships between species.
(10) In conclusion, DNA has been transferred sequentially from the chloroplast to the mitochondrion during crucifer evolution and there cpDNA sequences can persist in the mitochondrial genome over long periods of evolutionary time.
(11) In 1868, Thomas Huxley suggested that Archaeopteryx was an evolutionary link between dinosaurs and birds.
(12) Statistical analysis of 251 phylogenetically informative nucleotide positions rejects the "volvocine lineage" hypothesis, which postulates a monophyletic evolutionary progression from unicellular organisms (such as Chlamydomonas), through colonial organisms (e.g., Gonium, Pandorina, Eudorina, and Pleodorina) demonstrating increasing size, cell number, and tendency toward cellular differentiation, to multicellular organisms having fully differentiated somatic and reproductive cells (in the genus Volvox).
(13) This approach is correct for the period of the new evolutionary synthesis, too.
(14) Our findings demonstrate that the amino acid sequence of neuromedin U is markedly conserved in species which have diverged millions of years ago in evolutionary terms.
(15) Conventional dietary categories, particularly frugivory, are inadequate for organizing the behavioral and anatomical evidence pertinent to evolutionary adaptation.
(16) Maximum power output for the fast muscle fibres from the Antarctic species at -1 degree C is around 60% of that of the tropical fish at 20 degrees C. Evolutionary temperature compensation of muscle power output appears largely to involve differences in the ability of cross bridges to generate force.
(17) We propose that human influenza A is unique in that it is the only virus group in which antibody selection dominates evolutionary change.
(18) If other techniques of phylogenetic analysis confirm this evolutionary tree, we propose that the photocytes be given urkingdom status.
(19) Kimura's estimate of evolutionary distance, K, is 0.353, while those of Miyata and Yasunaga are KS = 0.708 and KA = 0.171.
(20) In order to understand the evolutionary history of the B sheep locus, we have sequenced the beta B gene from these sheep, and the beta C gene from A-haplotype sheep, and compared the sequences to those of the sheep beta A, goat beta C, and beta A, and cow adult beta genes.
Homological
Definition:
(a.) Pertaining to homology; having a structural affinity proceeding from, or base upon, that kind of relation termed homology.
Example Sentences:
(1) Trifluoroacetylated rabbit serum albumin was 5 times more reactive with these antibodies and thus more antigenic than the homologous acetylated moiety confirming the importance of the trifluoromethyl moiety as an epitope in the immunogen in vivo.
(2) The ORF2 showed homology with the Escherichia coli regulatory gene ompR, and ORF4 showed homology with E. coli and Rhizobium meliloti regulatory genes fnr and fixK, respectively.
(3) Nucleotide sequence analysis of cDNAs for asparagine synthetase (AS) of Pisum sativum has uncovered two distinct AS mRNAs (AS1 and AS2) encoding polypeptides that are highly homologous to the human AS enzyme.
(4) In four main regions the conservation varied from 83-91% while in the remaining regions the homology dropped to between 56-62%.
(5) It has 61% homology with tRNA(Leu)(anticodon m5CAA) and 63% homology with tRNA(Leu)(anticodon UAG), the two other known yeast tRNAs(Leu).
(6) The specified region of the inner E2 core domain was highly homologous to the region of the E2 subunit of pyruvate dehydrogenase and alpha-ketoglutarate dehydrogenase.
(7) This novel mechanism of receptor regulation, named transmodulation, should be distinguished from the reduction in total receptor number caused by the homologous ligand (downregulation) and from the change in affinity produced by the binding of agonists or antagonists to the same receptor site.
(8) This unusual insertion could affect the interaction of cat CD4 with class II molecules, or with FIV, a feline homolog of HIV.
(9) On the basis of primary sequence homology with other known Pseudomonas lipases, a number of putative active site residues located in conserved areas were found.
(10) Extensive sequence homologies and other genetic features are shared with the related oncogenic virus, human papillomavirus type 16, especially in the major reading frames.
(11) Since the plasmid-cured strains did not contain DNA sequences homologous to plasmid DNA, the gene for the free-inclusion protein must be encoded in the chromosome.
(12) Examination of the deduced amino acid sequence revealed an apparent homology to cAMP binding sites in several other proteins.
(13) Thus, introduction of arginine in position 5 with a hydrophobic amino acid in position 6 is compatible with high potency in several biological systems and results in compounds with lowered potency to release histamine compared to homologous peptides with tyrosine in position 5 and D-arginine in position 6.
(14) This receptor and a growing family of related cytokine receptors share homologous extracellular features, including a well-conserved WSXWS motif.
(15) Amino acid analysis indicated a significant number of serine amino acids: N-terminal sequence data demonstrated a high level of homology; and trypsin digestion followed by reversed-phase HPLC indicated the possibility of multiple phosphorylation sites.
(16) Homologous insemination in 52 couples during a period of one year yields a conception rate of 38.5%.
(17) The region is distinctive in that the sequence is absent from the homologous domain of the erythroid alpha chain and diverges from the normal internal repeat structure observed throughout other spectrins.
(18) Surrounding intact ipsilateral structures are more important for the recovery of some of the language functions, such as motor output and phonemic assembly, than homologous contralateral structures.
(19) The results show that in both viral DNAs cleavage occurs at the origin and at one additional site which shows striking sequence homology with the origin region.
(20) The most striking homology was to yeast SEC7 in the central domain of the gene (57% identical over 466 bp) and also the protein level (42% identical amino acids; 39% conserved amino acids).