Flashcards - GRE Biology: Genetic Variability, Evolutionary Processes and Consequences

Flashcards - GRE Biology: Genetic Variability, Evolutionary Processes and Consequences
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molecular clock
The molecular clock is a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged
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homology
In the context of biology, homology is the existence of shared ancestry between a pair of structures, or genes, in different taxa
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Jean-Baptiste Lamarck
Jean-Baptiste Pierre Antoine de Monet, Chevalier de Lamarck , often known simply as Lamarck , was a French naturalist
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Jean-Baptiste Lamarck
Jean-Baptiste Pierre Antoine de Monet, Chevalier de Lamarck , often known simply as Lamarck , was a French naturalist
homology
In the context of biology, homology is the existence of shared ancestry between a pair of structures, or genes, in different taxa
molecular clock
The molecular clock is a technique that uses the mutation rate of biomolecules to deduce the time in prehistory when two or more life forms diverged
gene pool
The gene pool is the set of all genes, or genetic information, in any population, usually of a particular species
Disruptive selection
Disruptive selection, also called diversifying selection, describes changes in population genetics in which extreme values for a trait are favored over intermediate values
sympatric speciation
Sympatric speciation is the process through which new species evolve from a single ancestral species while inhabiting the same geographic region
inbreeding
Inbreeding is the production of offspring from the mating or breeding of individuals or organisms that are closely related genetically

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