types of selection

• adaption: inherited characteristics that enable an organism to survive and reproduce
• genomics is the study of genetics in organisms
• mammal characteristics include milk production, fur, live young
• in stabilising selection an average phenotype is selected for and extreme phenotypes are selected against
• stabilising selection, results in reduced variation
• in directional selection, one extreme form of the phenotype experiences selection against it
• in directional selection, population distribution shifts towards the other extreme trait
• disruptive selection is when selection pressure act against the mean average
• in disruptive selection 2 extreme traits are selected for, two new populations are formed