Evolutionary Change In Biology: What Is Evolution?

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In biology “Evolution” is defined as the change in genetic in a population over a period of time, through several generations. Looking at the microscopic scale, evolution meant the mutation in the alleles of a certain genes are passed on to the next and next generations, and over the long period of time, these changes will “culminate in new forms … provides an explanation for the origins of morphological diversity, adaptation, and natural selection” (Bergman).
As far as, in Stearns et al “Introducing evolutionary thinking for medicine” we notice that evolution have a large contribute to human health and history. According to Stearns et al, ancestral human was unable to digest fresh milk after being weaned, because lactose in milk cause them
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Evolution is not always lead people to hardness. Example, evolution in technology in medical application, such phylogenetic reconstructions to identified viruses or sources or diseases to optimal way to treat them; Or attenuated live vaccines help human enhance their immunity to prevent certain diseases.
Evolutionary change is inevitable and issues behind natural selection is being argue in James Curtsinger’s Darwin in the Pumpkin Patch or Bay Area Travels with Charlie. Again, what is nature selection?
According to Darwin and Wallace Natural selection is the process by change biologically in population due to the interaction between genetic variations and the
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In this article, Curtsinger argues that “the force of natural selection declines with age.” He states “mutation confers enhanced immunity not at age 12 but at age 80.” He preferred 80-year-olds, “Octogenarian,” the “golden age”. And what he mainly argues about natural selection does not care about golden is is that, at 80-year-olds humans have no ability of reproduce, therefore, the “good genes” in this population would not be able to pass down to offspring. So, in Curtsinger’s opinion, natural selection ignores “the golden age”. The only most important to natural selection is the younger generation, because of their reproduction ability; This population, under the pressure of nature will get adapted or mutate in their to better suite to their environment, including ability to fight any developing infections, diseases, and pass on those traits to their offspring; and this process will keep go on from generation to generation. The concept behind this more or less is “survival of the fittest,” so the older generation is left at a

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