GMOs and Mutations - (1/9 - 1/13)

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Summary:

     Mutations and GMOs are the two main ways that DNA can change. Mutations are accidental changes in DNA. Mutations can come from internal factors such as errors when copying DNA or external factors such as radiation. Mutations can be helpful meaning that it benefits you, neutral meaning that it doesn't really do anything, and harmful, meaning that the mutation can possibly harm or kill you. Mutations are one way that you can change DNA. Another way people change DNA is through GMOs. GMO stands for genetically modified organism. It is when an organism, typically a plant or animal has modified DNA so it is immune to a certain type of disease, durable against weather, etc. There are many methods as to changing an organism's DNA. The Gene Gun is a type of gun that shoots the DNA into the organism's tissue using gold particles. Another method is using vectors. Vectors are viruses with modified DNA in them. When the virus is injected into the body, it will put the modified DNA into yours to give the body new instructions.

SP6 - Constructing Explanations: 

     This week I constructed an explanation of how my superhero got his powers through explaining how GMOs work. My superhero was genetically modified to have similar traits to a chameleon (blending, tail, etc.) when scientists were experimenting with genetically modified humans. My superhero had restriction enzymes put in him which cut out a part of his DNA. He was then injected with the DNA of a chameleon that gives the chameleon its blending, tail, 360 eyes, etc. to replace the cropped out DNA. Once the new DNA replaced the old, cropped out one, it was stitched with an enzyme called DNA ligase. Once the procedure was done, he was going to have similar traits to a chameleon. This is what I explained to show how my superhero was genetically modified to have the similar traits of a chameleon. 

XCC - Stability and Change:   

     One system that I identified that relates to Stability and Change is with DNA and cells. The DNA is the basic blueprints for life. It works with the cell to make an organism function. Some parts of the DNA can turn on and off to make different kinds of cells which do different jobs. Despite mutations happening all the time, it is usually unnoticed and stable, but can go unstable. In both an internal and external mutation, the DNA is changed to function differently. This can be harmful, helpful, or neutral. Mutations occur when there is a wrong base pairing (substitution), an extra letter appears in a DNA base pair (insertion) or when one letter in a DNA base pair goes away (deletion). The chromosomes which store the DNA can also duplicate in amount (duplication). Part of the DNA code can also be deleted (deletion), reversed (inversion), or be in a different area in the code (translocation). GMOs can also change the way DNA works. This is how DNA which is most of the time stable can go unstable.