human tumors; expression of evolutionarily novel and positively selected genes in the placenta, a tumor-like organ; and evidence of a connection of anti-cancer selection with developmental and evolutionary constraints that supports the concept of the positive role of tumors in progressive evolution.doi...
Record of middle Pleistocene climate change from Buck Lake, Cascade Range, southern Oregon—Evidence from sediment magnetism, trace-element geochemistry, a... Comparison of systematic variations in sediment magnetic properties to changes in pollen assemblages in middle Pleistocene lake sediments from Buck...
aSeveral other states have enacted similar anti-evolution policied,thereby elevating the feeling of religious fundamentalists over the accumu-lated evidence of the entire science of biology. 几个其他状态制定了相似的反演变policied,从而举起宗教原教旨主义者的感觉生物整个科学的积累证据。[translate]...
Recent molecular and cellular evidence indicates that eukaryotes comprise three major lineages: the probably ancestrally uniciliate protozoan phylum Amoebo... T Cavalier-Smith,EY Chao - 《Journal of Molecular Evolution》 被引量: 111发表: 2003年 加载更多来源...
The purpose of this chapter is to acquaint the reader with the chemical structures of various plant growth regulators and reports of their detection from plant sources. In general only plant growth substances from higher plants are considered. Growth sub
Hernandez D, McConville CM, Stacey M, Woods CG, Brown MM, Shutt P, Rysiecki G, Taylor AM (1993) A family showing no evidence of linkage between the ataxia-telangiectasia gene and chromosome 11q22–23. J Med Genet 30:135–140 PubMed CAS Google Scholar Herrod HG (1990) Chronic mucoc...
Exchange of other organisms occurred mainly in the Tertiary. In the Atlantic region there is no compelling evidence for the existence of a land connection even to Greenland, much less to mainland North America, at any time during the Quaternary. Interpretation of the evolution of present ...
Some People Think That it is More Important to Plant Tree in Open Areas- IELTS Writing Task 2 An opinion essay in IELTS Writing Task 2 requires you to present and support your personal viewpoint on a given topic. You must clearly state your opinion, provide relevant arguments and evidence,...
Rupture of the plaque surface, often with thrombosis superimposed, occurs frequently during the evolution of coronary atherosclerotic lesions. It is probab... E Falk - 《Circulation》 被引量: 1211发表: 1993年 Host-Parasite Coevolution: Evidence for Rare Advantage and Time-Lagged Selection in a Na...
This unprecedented convergence supports the idea that despite their extreme and strikingly divergent life histories and morphology, the evolution of these and other holoparasitic lineages can be shaped by highly predictable modes of genome reduction. We observe substantial evidence of relaxed selection in...