Theories Of Artificial Selection

According to Darwin and his theory on evolution, organisms are presented with nature’s challenge of environmental change. Those that possess the characteristics of adapting to such challenges are successful in leaving their genes behind and ensuring that their lineage will continue. It is natural selection, where nature can perform tiny to mass sporadic experiments on its organisms, and the results can be interesting from extinction to significant changes within a species.

But natural selection is not random Another confusing argument you may hear from a pro-evolutionist is the idea that evolution is in fact not random, and is not due to chance. They argue that evolution through natural selection is actually not chance at all. The reason being is that natural selection is in simple terms, survival of the fittest. It is logical.

Natural selection is the process in which heritable traits that make it more likely for organisms to survive and successfully reproduce become more common in a population over successive generations. Each of us individuals is specifically shaped and formed by our own genetic pattern. We inherit this pattern half from are mother and half from are father. The cause of this is the proximate cause that led it’s phenotype to ultimate causes. Much of we know today about evolution derives from the late great pioneer, Charles Darwin. Charles Darwin was an english naturalist that even from an early age was very interested in outdoor pursuits. Early in his prep career his father tried sending him to the University of Edinburg to pursue his medical

Many people are familiar with the words natural selection, an idea that was popularized by Darwin in the 19th century; to simply define it, natural selection is nature’s editing mechanism that results in the favoring of some individuals over others when exposed to certain environmental factors. Artificial selection parallels the process of natural selection but with an added twist: the involvement of human beings. Artificial selection is “a process in which humans consciously select for or against particular features in organisms” allowing “only organisms with the desired feature to reproduce or may provide more resources to the organisms with the desired feature” (Artificial Selection, n.d.).

There are many different types of breeding, but two main types are selective and natural breeding. Both of these types of breddings are involved in something else and are nothing like each other. Each breeding causes something else, and is involved with another part of their environment.

The definition of evolution is that species over time will change. They will start to adapt over time and become a new species. You see this happening throughout the world and over the course of our planets history. In this lab we will be testing different hypothesis and observing them to make conclusions if they can be justified or not. There are three different parts first is the Artificial and Natural selection, the second is the fossil record, third is comparative anatomy, biochemistry, embryology and the last is Biogeography.

He finally observed that overtime these birds developed different physical characteristics to help them be able to survive and adapt to their surroundings. Darwin developed the “Natural Selection” theory that stated that plants and animals adapt to their surroundings and environments in order to survive. He also stated that older generations of these species would eventually die out, because they do not have the newer characteristics that needed to be developed in order to live.

Charles Darwin and Alfred Russel Wallace two different people yet one same idea. Charles Robert Darwin was an english naturalist whose theory of evolution by natural selection is defined as the “foundation of modern evolutionary theories.” Darwin and Wallace both lived during the same period of time in the mid 1800’s and both studied natures theory of evolution. Let us get into the evolution of Mister Charles Darwin. Alfred Russel Wallace was another English naturalist who also came up with the idea of evolution by natural selection at about the same time as Darwin. Darwin began his bold discoveries after a voyage around the world in 1837 through 1839, where he spent around twenty years on his studies of his theories, in which he waited almost two decades to unleash his discoveries.

Darwin came up with a good idea but the animals he compared were a bit too farfetched. Using a whale as an example of evolution by natural selection is an example which is still used today.

If natural selection is to result in the evolution of traits associated with adaptation within a given plant population certain conditions such as sexual reproduction, mutations, and gene flow, all of which facilitate genetic variation, must exist. While plants can reproduce asexually, those that reproduce sexually produce new alleles through genetic recombination. This allows for the emergence of new phenotypes, and subsequently new individuals, that are better suited for their environment. Likewise, mutations, which are changes in DNA, can add genetic variation to a population and create phenotypic changes. If these alterations result in individuals being better suited to their environment, natural selection will select for these traits,

Humans and dogs have lived together for hundreds of years. They are treated differently all over the world; some countries like to modify dogs’ genes to whatever they want. Pure breeding dogs have been accepted by all of humanity. It is our way of perfecting or changing something natures given. Why not do that to humans as well? We could create a super human race to go out and rule worlds. Oh well if a few die off from the breeding, that’s just the cost of achieving what you want. An article about the negative aspects of inbreeding stated,” selective breeding, otherwise known as artificial selection. It’s the exact opposite of natural selection, and it completely disrupts the purpose of evolution.” (This vs. now). If it’s no issue sending

Since Charles Darwin raised the concept of natural selection, all generations have been enlightened with the idea of the “preservation of favorable variations and the rejection of injurious variations […] useful in some ways to each being in the great and complex battle of life.” (Darwin, 1) However, only the most recent generations have heard about something called genetic modification that in some cases we don’t understand, but whose effects have been increased in our daily life.

Charles Darwin and Alfred Wallace like so many of their predecessors made observations of natural phenomena that inspired proposals of how life on earth evolved, unlike others these men formed plausible explanations of how the changes in populations occurred without having any knowledge of Mendelian genetics which was presented in 1868, and provided the micro-mechanism for evolution that Darwin could never explain with his theory of Pangenesis. Rather, based solely on the observations each made over time observing different species of populations around the world, both men were able to pen the ideals that would serve as the foundation of the modern theory of evolution.

Today many scientists are able to measure evolution through genetic mutations in plants and animals alike. Charles Darwin developed the Natural Selection Theory, stating that organisms that are best fit to adapt to their environment will thrive and produce more offspring thus passing on their thriving genes. This goes hand and hand mutations because for example, if a red fox lives in a snowy climate and produces an offspring with an albino mutation, the offspring with the mutation may be better able to survive due to the fact that the animal blends in better with the environment. Thus, surviving longer and producing more offspring with the same genes and ultimately evolving the species.

GMO stands for Genetically Modified Organism, which is the process of extracting genes from one species into another unrelated species. The process of transferring DNA from two distinct species is through genetic engineering. This displays the new traits of the first donor, which will be part of the genetic make up of the recipient organism. GMO is different from cross breeding or hybridization. Scientists developed GM plants by introducing genes that kill insects and protect crops against viruses. Many of these GM plants require less water so that they are able to grow in areas where water is scarce. The benefit of GMOs help crops grows and ripens faster so that farmers are able to grow more crops throughout the year. On the other hand, GMOs may be harmful to humans if they are not washed and cleaned properly before eating. GMOs include high risk of allergens, toxins, and other unknown side effects that are harmful.