Ancestors go South.(Australopithecus fossils found in South Africa date to 4 milion years ago)(Brief Article)

Science News | April 26, 2003| | Copyright

Some of the oldest fossils in the human evolutionary family--including the skull and upper-arm bone shown above--come from South Africa, according to a study in the April 25 Science.

A mix of new and already excavated Australopithecus fossils, found in two caves, date to 4 million years ago, reports a team led by Timothy C. Partridge of University of the Witwatersrand in Johannesburg. That's as many as 1 million years ...

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

Recombination Map of the Common Shrew, Sorex araneus (Eulipotyphla, Mammalia)
Magazine article from: Genetics ; ...generate a high-precision cytological recombination map for the species, the third such...staining. Altogether we mapped 13,983 recombination sites along 7095 individual autosomes...a mismatch repair protein marking recombination sites. We estimated the total recombination...
Recombination analysis of Soybean mosaic virus sequences reveals evidence of RNA recombination between distinct pathotypes.(Short report)(Clinical report)
Magazine article from: Virology Journal ; ...RNA-dependent RNA polymerase and recombination between different viral RNA molecules...varies between virus species, and the recombination frequency is dependent on the degree...of viral genome and the presence of recombination hot spots [12, 13, 14]. Mutation...
Recombination rate and protein evolution in yeast.(Research article)
Magazine article from: BMC Evolutionary Biology ; ...size ( N e ) is small [1, 2, 3]. Recombination increases the effective population...selection [4, 5]. As a result, recombination is expected to facilitate the spread...deleterious mutations [6, 7]. Because recombination rates vary between different regions...
Meiotic Recombination in Drosophila Msh6 Mutants Yields Discontinuous Gene Conversion Tracts
Magazine article from: Genetics ; ...Crossovers (COs) generated through meiotic recombination are important for the correct segregation...the molecular mechanism of meiotic recombination have been proposed. These models differ...arrangement of heteroduplex DNA (hDNA) in recombination intermediates. Heterologies in hDNA...
Detailed Recombination Studies Along Chromosome 3B Provide New Insights on Crossover Distribution in Wheat (Triticum aestivum L.)
Magazine article from: Genetics ; ...both the distribution and the intensity of recombination along this gradient. To investigate this...results showed m values of 1.2 for male recombination and 3.5 for female recombination, suggesting positive interference along...
Homologous recombination is unlikely to play a major role in influenza B virus evolution.(Short report)
Magazine article from: Virology Journal ; ...that various forms of non-homologous recombination, albeit rarely, occurs in influenza...However, the occurrence of homologous recombination in influenza viruses is controversial...Gibbs et al. proposed that homologous recombination had occurred in the HA gene of 1918...
Homeologous Recombination in Solanum lycopersicoides Introgression Lines of Cultivated Tomato
Magazine article from: Genetics ; ...was used to study factors affecting homeologous recombination. Recombination rates were estimated in progeny of 43 heterozygous...representing 11 of the 12 tomato chromosomes. Recombination within homeologous segments was reduced to as...
Phylogenetic Mapping of Recombination Hotspots in Human Immunodeficiency Virus via Spatially Smoothed Change-Point Processes
Magazine article from: Genetics ; ...inferring spatial preferences of recombination from multiple putative recombinant...nucleotide sequences. Phylogenetic recombination detection has been an active...information from several instances of recombination have been made. We propose...
Fraction of Informative Recombinations: A Heuristic Approach to Analyze Recombination Rates
Magazine article from: Genetics ; ...informative recombinations, InfRec) to analyze recombination density at...presence of recombination hotspots...80% of recombinations in one...whereas meiotic recombinations redistribute...reliable map of recombination intensity...
Somatic DNA recombination in the brain (1).
Magazine article from: Canadian Journal of Physiology and Pharmacology ; ...Abstract: Possible somatic DNA recombination in the brain has been investigated...the genes is involved in the recombination, or even whether the event...oriented approach and the recombination activity-oriented approach...

Find more facts and information related to the article "Ancestors go South.(Australopithecus fossils ..."