molecular fossils

molecular fossils

[mə¦lek·yə·lər ′fäs·əlz]
(geology)
References in periodicals archive ?
Pseudogenes were previously regarded as molecular fossils, non-functional by-products of genome evolution.
Molecular fossils in chromatograms can indicate what went into oil, under what conditions, and when.
Peaks of bisnorhopanes in the Santa Barbara oil chromatogram (above, center) are telltale molecular fossils indicating that the oil formed in sediments where there was little or no oxygen.
These genes, considered molecular fossils of an ancient born a virus, have also turned up in searches of a variety of other mammalian genomes.
By studying the molecular fossils in the cores lifted from drill holes, Love and his colleague, Roger Summons of the Massachusetts Institute of Technology (MIT), have found evidence of animals that lived as long as 751 million years ago.
In our research, we use molecular fossils, or biomarkers, such as oleanane to provide evolutionary and paleoenvironmental information from sediments and petroleum.
By examining deep-sea sediments of molecular fossils, a team of British, American and German scientists has concluded that global cooling over the last 3.
coypus by reviewing the current data and establishing a case for the analysis of specific genomic retroposons, molecular fossils of the nutria's evolutionary descent.
The genomic tag hypothesis: modern viruses are molecular fossils of ancient strategies for genomic replication.
Using a sophisticated, multidimensional gas chromatography device, the researchers could distinguish individual archaea-produced chemical compounds within the complex mixture of molecular fossils.
The genomic tag hypothesis: modern viruses as molecular fossils of ancient strategies for genomic replication.
MAIZELS: We are seeing the top half of the tRNA in the fossil record, and I believe that the synthetase determinants constitute a molecular fossil record.

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