Darwin's Four Postulates
By Ricardo Villarreal Chapa
Who is Darwin?
He wrote a book titled On the Origin of Species that went into quick success, as it's first and second printing sold out immediately. His ideas and theories became so influential in the scientific world that it didn't take time for them to spread into society. Some say that his theories created a "societal transformation".
Darwin's theories consist of two main things: (1) the diversity of groups of animals that evolve from one or more ancestors and (2) the mechanism by "which this evolution takes place is natural selection".
In this Smore I will explain to you thoroughly Darwin's four main postulates!
It can be inferred that they come from mutation as the alteration of the existing genes form new alleles, and then they can arise and copy new errors during DNA replication (as well as DNA Damage and then recombine during cell division).
On the other hand, they can also come from sexual reproduction where new combinations of DNA are created through independent assortment of genes.
An example to back up this statement takes us back to an assignment we did before spring break. It involved a game where we would choose special physical traits to rabbits and as time went by and as they reproduced themselves, the recipient offspring would either inherit the black fur or they would stick to the white fur. This allowed us to see that as evolution goes by, it takes into consideration all of the hereditary traits that have gone out through all history.
3. Different Survivals
In this process, those variations in the genotype that have an increased an organism's probability of survival and procreation have multiplied from generation to generation at the cost of the less fortunate. This allows evolution to often occur as a consequence of this process.
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Gittleman, J. L. (2015, October/November). Extinction | biology. Retrieved April 05, 2016, from http://global.britannica.com/science/extinction-biology
T. (2014, July/August). Natural selection | biology. Retrieved April 05, 2016, from http://global.britannica.com/science/natural-selection
Wallow, T., & B. (n.d.). Charles Darwin. Retrieved April 05, 2016, from http://www.biography.com/people/charles-darwin-9266433#related-video-gallery