Evolution is simply
defined as change in genetic pool, observed in a population over a period of
time. Usually, the period is long. Such changes must occur on genetic level and
be transmitted to future populations if at all it must be termed as evolution.
These are some of the few things to familiarize with when writing an evolution essay.
Changes defining
evolution must be observable character traits in organisms. These observable
changes in populations are termed as phenotypes. In writing evolution essays, one must understand
two important terms: i.e. macroevolution and microevolution.
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The term macroevolution
is associated with the view that all population and living things have a common
origin. This indicates that they vary following evolution. The other term in
the name of macroevolution defines changes of traits occurring at genetic
level.
Some people get it
wrong when writing evolution essays by
defining evolution as changes over time. It would be helpful to say that this
is placing evolution in the same level as weight loss or weight gain. Yet, for
instance, weight gain cannot compare to biological evolution because, although
they might take place over time, they are not taking place at the genetic
level. Again, these changes cannot be passed from parents to offspring.
Charles Darwin is a
proponent of the evolution theory. The issue of evolution theory is an
important consideration among those writing evolution essays. There are other scientists-in fact, many
associated with promotion of the evolution theory and are of great interest
among those writing evolution essays.
For instance, Mendel
Gregor discovered process by which genes (alleles) were transmitted from
parents. Others involved in discovery of DNA are the likes of Maclyn McCarty;
DNA structure determination includes Maurice Wilkins. James Watson also has
been involved in the discovery or determination of the structure of DNA.
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