Biological Consequnces

• Environmental selection pressures reduce allele frequencies, by deciding on which phenotypes are fitter and more likely to be passed to the next generation
• As advantageous traits increases in population, advantages allele frequencies increase. This allows evolution to occur
• However, survivability of a species relies on large genetic diversity as it allows higher chance of possessnig alleles that will help them survive a new selection pressure
• Interbredding within smaller populations/low genetic diversity, therefore, higher frequncy f disadvantageous allele