Different essays Essay Example | Topics and Well Written Essays - 250 words

Different essays - Essay Example Therefore, they mate with members from a diverse population. Thus, a new species may develop (Alcamo & Schweitzer, 2011). It implies evolution is devoid of have a particular goal that it intends to realize (Simon, 2015). They just evolve meaning they have a capability of changing their structure and reacts on the problems the environment presents at the specific times (Simon, 2015). For evolution to occur, mutation has to take place though it is an extremely slow progression and cannot be rapidly (Simon, 2015). The genes may shift from one population to another and the nonrandom mating may occur quickly but the generic drift occurs by chance randomly. Therefore, it might take a while before this happens. Moreover, selection varies in different genotypes. It may take a while for individuals in a population to be varied (Simon, 2015). Some bacteria have a mutation that makes them possible to survive the penicillin (Simon, 2015). Moreover, the administration of the penicillin changes the environment in which the bacteria reside. The bacteria with resistance genes will survive this new environment. The resistance genes pass over to several generations due to natural selection (Simon, 2015). Due to the usage of penicillin for many generations, the resistant bacteria increase over time. This makes penicillin less effective (Simon,