Genecology 



The study of population genetics in relation to the 

 habitat conditions; the study of species and other taxa by the 

 combined methods and concepts of ecology and genetics. 



Gene Flow 



The duplication and dispersal of genes in a population. 



Gene Pool 



In a narrow sense, the genie material of a local inter- 

 breeding population at the present time. In a broad sense, 

 the total genie resources or materials of a species throughout 

 its geographical range. 



Generic 



Refers to Genus. 



Generic Coefficient 



The ratio of the number of genera to the number of 

 species in an area. 



Genetic Drift 



Accidental fluctuations in the proportions of a particular 

 Allele so that exact Mendelian ratios do not occur, which 

 may result in the fixation or loss of certain genes in small 

 populations without reference to selective value, cf. Natural 

 selection. 



Genetics 



The branch of biology dealing with Heredity in all its 

 phases. 



Genome (Genom) 



The set of different Chromosomes, as found in a Gamete, 

 or Haploid nucleus; the Diplod nucleus contains two 

 genomes, Polyploids more than two. 



Genotype 



The entire genetic constitution, or the sum total of genes, 

 of an organism, in contrast to the Phenotype. 



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