Genotypes and Phenotypes

In selection, there are many aspects that play a roll beyond the genotype of the organism. In many cases, this relates to environmental factors pressuring organism's survival and reproduction. Those with traits better suited to their environment, like behaviors and physical characteristics, have a higher chance at surviving to produce offspring. Then, the genotypes associated with the better suited phenotypes are more likely to be passed on to offspring allowing the organisms in future generations to continue being selected for as long as external conditions continue to select for that trait. This pushes evolution foward. Use the dots in this as an example, the purple color is selected for (displayed by the higher number of offspring) due to the purple environment. The purple coloration allows them to blend into the purple environment better allowing them to continue to survive and reproduce.

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