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Why Does Evolutionary Change Occur In Populations Essay

751 Words4 Pages

Diego Villalobos Erives
Marlo Willows
Physical anthropology

How does evolutionary change occur in populations? What are the processes of evolution and how do they work?
Evolutionary change occurs in the population when it merges with another population that may have different straight suited to the environment or place that the population lives in it can be very positive because inn some cases a generation many not have an immunity to a sickness or infection virus or bacteria but the next generation will because they have adapted the their surroundings another benefit of evolutionary change is that many other chronic illnesses that are in other generation have dissipated because when population evolve they will have less of a rate of chronic …show more content…

“Gene flow — also called migration — is any movement of individuals, and/or the genetic material they carry, from one population to another. Gene flow includes lots of different kinds of events, such as pollen being blown to a new destination or people moving to new cities or countries. If gene versions are carried to a population where those gene versions previously did not exist, gene flow can be a very important source of genetic variation” this genetic variation can help in displacing other genes that are less resistant to the negative effects of the place the person is living in. The last process is mutation it is a process that is neither natural or unnatural because it causes changes in the cells which could be beneficial or very bad an example would be cancer which is in fact mutation of the cells however it is harmful to the body fortunately there is only one type of mutation that can be inherited the university Berkley more accurately explains it

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