Geographical variation refers to differences among populations in genetically based traits across the natural geographic range of a species. ... In the simplest case, we divide these factors into purely genetic versus environmental components to tease apart their relative contributions to observed phenotypic variation.
        
             
        
        
        
Answer:
a mutant dominant allele is expressed in very individual who inherits even one copy points a seriosbdisorder where people can die young and fail to reproduce so basically a dominant allele with die out of population 
 
        
             
        
        
        
More growth of flowers and or more plant food/water supply for it
        
                    
             
        
        
        
Answer:
first one is chromosome and second one is double helix
Explanation:
 idek if that's what your asking lol hope you do good