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10 Cards in this Set
- Front
- Back
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Certain genes and proteins are used as __________ which are actually measurement of evolutionary change
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evolutionary choronometers
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The most widely used molecular chronometer is
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rRNA
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The eukaryotic functional equivalent of the prokaryotic 16s rRNA is the
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18S
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The use of SSU rRNA as a phylogenetic root was powered in the early 1970’s by ?
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Carl Woese
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Two widely used treeing algorithms are
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distance and parsimony
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What is an evolutionary distance?
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Evolutionary distance is differences in nucleotide or amino acid sequence of functionally similar (homologous) macromolecules
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Why is ribosomal RNA a good evolutionary chronometer?
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Are relatively large, functionally constant, universally distributed, and contain several regions in which the nucleotide sequence is conserved in all cells.
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What are the RDP and GenBank
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RDP- Ribosomal Database Program is a database of rRNA sequences. GenBank- genetic database
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What is a signature sequence?
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Short oligonucleotides unique to certain groups of organisms
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What is a phylogenetic stain?
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Fluorescing oligonucleotides complementary in base sequence to signature sequences in rRNA
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